CVE-2019-9503

The Broadcom brcmfmac WiFi driver prior to commit a4176ec356c73a46c07c181c6d04039fafa34a9f is vulnerable to a frame validation bypass. If the brcmfmac driver receives a firmware event frame from a remote source, the is_wlc_event_frame function will cause this frame to be discarded and unprocessed. If the driver receives the firmware event frame from the host, the appropriate handler is called. This frame validation can be bypassed if the bus used is USB (for instance by a wifi dongle). This can allow firmware event frames from a remote source to be processed. In the worst case scenario, by sending specially-crafted WiFi packets, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. More typically, this vulnerability will result in denial-of-service conditions.

• rtmutex: Use waiter::task instead of current in remove_waiter() {CVE-2026-43499}
• xfs: fix freemap adjustments when adding xattrs to leaf blocks {CVE-2026-43158}
• xfs: delete attr leaf freemap entries when empty {CVE-2026-43158}
• ALSA: 6fire: fix use-after-free on disconnect {CVE-2026-31581}
• brcmfmac: add subtype check for event handling in data path {CVE-2019-9503}
• nl80211: validate beacon head {CVE-2019-16746}
• ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c {CVE-2018-19824}
• media: dvb-net: fix OOB access in ULE extension header tables {CVE-2026-31405}
• mac80211: Reject malformed SSID elements {CVE-2019-17133}

• rtmutex: Use waiter::task instead of current in remove_waiter() {CVE-2026-43499}
• xfs: fix freemap adjustments when adding xattrs to leaf blocks {CVE-2026-43158}
• xfs: delete attr leaf freemap entries when empty {CVE-2026-43158}
• ALSA: 6fire: fix use-after-free on disconnect {CVE-2026-31581}
• brcmfmac: add subtype check for event handling in data path {CVE-2019-9503}
• nl80211: validate beacon head {CVE-2019-16746}
• ALSA: usb-audio: Fix UAF decrement if card has no live interfaces in card.c {CVE-2018-19824}
• media: dvb-net: fix OOB access in ULE extension header tables {CVE-2026-31405}
• mac80211: Reject malformed SSID elements {CVE-2019-17133}

The openSUSE Leap 15.0 kernel was updated to receive various security and bugfixes.

Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331)

• CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
• CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

This kernel update contains software mitigations for these issues, which also utilize CPU microcode updates shipped in parallel.

For more information on this set of information leaks, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security bugs were fixed:

• CVE-2018-16880: A flaw was found in handle_rx() function in the vhost_net driver. A malicious virtual guest, under specific conditions, can trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (bnc#1122767).
• CVE-2019-11486: The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c had multiple race conditions (bnc#1133188). It has been disabled.
• CVE-2019-11815: An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c. There is a race condition leading to a use-after-free, related to net namespace cleanup (bnc#1134537).
• CVE-2019-11884: The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c allowed a local user to obtain potentially sensitive information from kernel stack memory via a HIDPCONNADD command, because a name field may not end with a '\0' character (bnc#1134848).
• CVE-2019-3882: A flaw was found in vfio interface implementation that permits violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). (bnc#1131416 bnc#1131427).
• CVE-2019-9003: Attackers can trigger a drivers/char/ipmi/ipmi_msghandler.c use-after-free and OOPS by arranging for certain simultaneous execution of the code, as demonstrated by a 'service ipmievd restart' loop (bnc#1126704).
• CVE-2019-9500: A brcmfmac heap buffer overflow in brcmf_wowl_nd_results was fixed (bnc#1132681).
• CVE-2019-9503: Multiple brcmfmac frame validation bypasses have been fixed (bnc#1132828).

The following non-security bugs were fixed:

• 9p: do not trust pdu content for stat item size (bsc#1051510).
• acpi, nfit: Prefer _DSM over _LSR for namespace label reads (bsc#1112128) (bsc#1132426).
• ACPI / SBS: Fix GPE storm on recent MacBookPro's (bsc#1051510).
• ALSA: core: Do not refer to snd_cards array directly (bsc#1051510).
• ALSA: core: Fix card races between register and disconnect (bsc#1051510).
• ALSA: emu10k1: Drop superfluous id-uniquification behavior (bsc#1051510).
• ALSA: hda - Add two more machines to the power_save_blacklist (bsc#1051510).
• ALSA: hda/hdmi - Consider eld_valid when reporting jack event (bsc#1051510).
• ALSA: hda/hdmi - Read the pin sense from register when repolling (bsc#1051510).
• ALSA: hda: Initialize power_state field properly (bsc#1051510).
• ALSA: hda/realtek - Add new Dell platform for headset mode (bsc#1051510).
• ALSA: hda/realtek - Add quirk for Tuxedo XC 1509 (bsc#1131442).
• ALSA: hda/realtek - Add support headset mode for DELL WYSE AIO (bsc#1051510).
• ALSA: hda/realtek - Add support headset mode for New DELL WYSE NB (bsc#1051510).
• ALSA: hda/realtek - add two more pin configuration sets to quirk table (bsc#1051510).
• ALSA: hda/realtek - Apply the fixup for ASUS Q325UAR (bsc#1051510).
• ALSA: hda/realtek - EAPD turn on later (bsc#1051510).
• ALSA: hda/realtek - Fixed Dell AIO speaker noise (bsc#1051510).
• ALSA: hda - Register irq handler after the chip initialization (bsc#1051510).
• ALSA:…

The openSUSE Leap 15.1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-7191: In the tun subsystem dev_get_valid_name xwas not called before register_netdevice. This allowed local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343 (bnc#1135603).
• CVE-2019-11085: Insufficient input validation in Kernel Mode Driver in Intel(R) i915 Graphics for Linux may have allowed an authenticated user to potentially enable escalation of privilege via local access (bnc#1135278).
• CVE-2019-11486: The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c in the Linux kernel had multiple race conditions (bnc#1133188). It was disabled by default.
• CVE-2019-11811: There is a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module is removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c (bnc#1134397).
• CVE-2019-11815: An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c kernel. There is a race condition leading to a use-after-free, related to net namespace cleanup (bnc#1134537).
• CVE-2019-11833: fs/ext4/extents.c did not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem (bnc#1135281).
• CVE-2019-11884: The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c allowed a local user to obtain potentially sensitive information from kernel stack memory via a HIDPCONNADD command, because a name field may not end with a '\0' character (bnc#1134848).
• CVE-2019-3882: A flaw was found in the vfio interface implementation that permits violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). (bnc#1131416 bnc#1131427).
• CVE-2019-5489: The mincore() implementation in mm/mincore.c allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server (bnc#1120843).
• CVE-2019-9500: A brcmfmac heap buffer overflow in brcmf_wowl_nd_results was fixed (bnc#1132681).
• CVE-2019-9503: Multiple brcmfmac frame validation bypasses have been fixed (bnc#1132828).

The following non-security bugs were fixed:

• 9p: do not trust pdu content for stat item size (bsc#1051510).
• 9p locks: add mount option for lock retry interval (bsc#1051510).
• acpi: Add Hygon Dhyana support ().
• acpi: Add Hygon Dhyana support (fate#327735).
• acpi: button: reinitialize button state upon resume (bsc#1051510).
• acpiCA: AML interpreter: add region addresses in global list during initialization (bsc#1051510).
• acpiCA: Namespace: remove address node from global list after method termination (bsc#1051510).
• acpi, nfit: Prefer _DSM over _LSR for namespace label reads (bsc#112128) (bsc#1132426).
• acpi: PM: Set enable_for_wake for wakeup GPEs during suspend-to-idle (bsc#1111666).
• acpi: property: restore _DSD data subnodes GUID comment (bsc#1111666).
• acpi / SBS: Fix GPE storm on recent MacBookPro's (bsc#1051510).
• acpi / utils: Drop reference in test for device presence (bsc#1051510).
• alsa: core: Do not refer to snd_cards array directly (bsc#1051510).
• alsa: core: Fix card races between register and disconnect (bsc#1051510).
• alsa: emu10k1: Drop superfluous id-uniquification behavior (bsc#1051510).
• alsa: hda - Add two more machines to the power_save_blacklist (bsc#1051510).
• alsa:…

The SUSE Linux Enterprise 15 for Azure kernel was updated to receive various security and bugfixes.

Four new speculative execution issues have been identified in Intel CPUs. (bsc#1111331)

• CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
• CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

This kernel update contains software mitigations, utilizing CPU microcode updates shipped in parallel.

For more information on this set of information leaks, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security bugs were fixed:

• CVE-2019-9003: Attackers can trigger a drivers/char/ipmi/ipmi_msghandler.c use-after-free and OOPS by arranging for certain simultaneous execution of the code, as demonstrated by a 'service ipmievd restart' loop (bnc#1126704).
• CVE-2018-16880: A flaw was found in the handle_rx() function in the [vhost_net] driver. A malicious virtual guest, under specific conditions, can trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (bnc#1122767).
• CVE-2019-9500: A brcmfmac heap buffer overflow in brcmf_wowl_nd_results was fixed. (bnc#1132681).
• CVE-2019-9503: A brcmfmac frame validation bypass was fixed. (bnc#1132828).
• CVE-2019-3882: A flaw was found in the vfio interface implementation that permits violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). (bnc#1131416 bnc#1131427).

The following non-security bugs were fixed:

• 9p: do not trust pdu content for stat item size (bsc#1051510).
• acpi: acpi_pad: Do not launch acpi_pad threads on idle cpus (bsc#1113399).
• acpi, nfit: Prefer _DSM over _LSR for namespace label reads (bsc#1132426).
• acpi / SBS: Fix GPE storm on recent MacBookPro's (bsc#1051510).
• alsa: core: Fix card races between register and disconnect (bsc#1051510).
• alsa: echoaudio: add a check for ioremap_nocache (bsc#1051510).
• alsa: firewire: add const qualifier to identifiers for read-only symbols (bsc#1051510).
• alsa: firewire-motu: add a flag for AES/EBU on XLR interface (bsc#1051510).
• alsa: firewire-motu: add specification flag for position of flag for MIDI messages (bsc#1051510).
• alsa: firewire-motu: add support for MOTU Audio Express (bsc#1051510).
• alsa: firewire-motu: add support for Motu Traveler (bsc#1051510).
• alsa: firewire-motu: use 'version' field of unit directory to identify model (bsc#1051510).
• alsa: hda - add Lenovo IdeaCentre B550 to the power_save_blacklist (bsc#1051510).
• alsa: hda - Add two more machines to the power_save_blacklist (bsc#1051510).
• alsa: hda - Enforces runtime_resume after S3 and S4 for each codec (bsc#1051510).
• alsa: hda: Initialize power_state field properly (bsc#1051510).
• alsa: hda/realtek - Add quirk for Tuxedo XC 1509 (bsc#1131442).
• alsa: hda/realtek - Add support for Acer Aspire E5-523G/ES1-432 headset mic (bsc#1051510).
• alsa: hda/realtek - Add support headset mode for DELL WYSE AIO (bsc#1051510).
• alsa: hda/realtek - Add support headset mode for New DELL WYSE NB (bsc#1051510).
• alsa: hda/realtek - add two more pin configuration sets to quirk table (bsc#1051510).
• alsa: hda/realtek: Enable ASUS X441MB and X705FD headset MIC with ALC256 (bsc#1051510).
• alsa: hda/realtek: Enable headset MIC of Acer AIO with ALC286 (bsc#1051510).
• alsa: hda/realtek: Enable headset MIC of Acer Aspire Z24-890 with ALC286 (bsc#1051510).
• alsa: hda/realtek: Enable headset mic of ASUS P5440FF with ALC256 (bsc#1051510).
• alsa: hda - Record the current power state before suspend/resume…

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331)

• CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
• CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

This kernel update contains software mitigations for these issues, which also utilize CPU microcode updates shipped in parallel.

For more information on this set of vulnerabilities, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security bugs were fixed:

• CVE-2018-16880: A flaw was found in the handle_rx() function in the vhost_net driver. A malicious virtual guest, under specific conditions, could trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (bnc#1122767).
• CVE-2019-3882: A flaw was found in the vfio interface implementation that permitted violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). (bnc#1131416 bnc#1131427).
• CVE-2019-9003: Attackers could trigger a drivers/char/ipmi/ipmi_msghandler.c use-after-free and OOPS by arranging for certain simultaneous execution of the code, as demonstrated by a 'service ipmievd restart' loop (bnc#1126704).
• CVE-2019-9500: A brcmfmac heap buffer overflow in brcmf_wowl_nd_results was fixed. (bnc#1132681).
• CVE-2019-9503: A brcmfmac frame validation bypass was fixed. (bnc#1132828).

The following non-security bugs were fixed:

• 9p: do not trust pdu content for stat item size (bsc#1051510).
• ACPI: acpi_pad: Do not launch acpi_pad threads on idle cpus (bsc#1113399).
• acpi, nfit: Prefer _DSM over _LSR for namespace label reads (bsc#1112128) (bsc#1132426).
• ACPI / SBS: Fix GPE storm on recent MacBookPro's (bsc#1051510).
• alsa: core: Fix card races between register and disconnect (bsc#1051510).
• alsa: echoaudio: add a check for ioremap_nocache (bsc#1051510).
• alsa: firewire: add const qualifier to identifiers for read-only symbols (bsc#1051510).
• alsa: firewire-motu: add a flag for AES/EBU on XLR interface (bsc#1051510).
• alsa: firewire-motu: add specification flag for position of flag for MIDI messages (bsc#1051510).
• alsa: firewire-motu: add support for MOTU Audio Express (bsc#1051510).
• alsa: firewire-motu: add support for Motu Traveler (bsc#1051510).
• alsa: firewire-motu: use 'version' field of unit directory to identify model (bsc#1051510).
• alsa: hda - add Lenovo IdeaCentre B550 to the power_save_blacklist (bsc#1051510).
• alsa: hda - Add two more machines to the power_save_blacklist (bsc#1051510).
• alsa: hda - Enforces runtime_resume after S3 and S4 for each codec (bsc#1051510).
• alsa: hda: Initialize power_state field properly (bsc#1051510).
• alsa: hda/realtek - Add new Dell platform for headset mode (bsc#1051510).
• alsa: hda/realtek - Add quirk for Tuxedo XC 1509 (bsc#1131442).
• alsa: hda/realtek - Add support for Acer Aspire E5-523G/ES1-432 headset mic (bsc#1051510).
• alsa: hda/realtek - Add support headset mode for DELL WYSE AIO (bsc#1051510).
• alsa: hda/realtek - Add support headset mode for New DELL WYSE NB (bsc#1051510).
• alsa: hda/realtek - add two more pin configuration sets to quirk table (bsc#1051510).
• alsa: hda/realtek - Apply the fixup for ASUS Q325UAR (bsc#1051510).
• alsa: hda/realtek: Enable ASUS X441MB and X705FD headset MIC with ALC256 (bsc#1051510).
• alsa: hda/realtek: Enable headset MIC of Acer AIO with ALC286 (bsc#1051510).
• alsa: hda/realtek: Enable headset MIC of…

The SUSE Linux Enterprise 12 SP4 Azure kernel was updated to receive various security and bugfixes.

Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331)

• CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
• CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

This kernel update contains software mitigations for these issues, which also utilize CPU microcode updates shipped in parallel.

For more information on this set of information leaks, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security bugs were fixed:

• CVE-2018-16880: A flaw was found in the handle_rx() function in the vhost_net driver. A malicious virtual guest, under specific conditions, could trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (bnc#1122767).
• CVE-2019-9003: Attackers could trigger a drivers/char/ipmi/ipmi_msghandler.c use-after-free and OOPS by arranging for certain simultaneous execution of the code, as demonstrated by a 'service ipmievd restart' loop (bnc#1126704).
• CVE-2019-9503: A brcmfmac frame validation bypass was fixed. (bnc#1132828).
• CVE-2019-9500: A brcmfmac heap buffer overflow in brcmf_wowl_nd_results was fixed. (bnc#1132681).
• CVE-2019-3882: A flaw was found in the vfio interface implementation that permitted violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). (bnc#1131416 bnc#1131427).

The following non-security bugs were fixed:

• 9p: do not trust pdu content for stat item size (bsc#1051510).
• acpi: acpi_pad: Do not launch acpi_pad threads on idle cpus (bsc#1113399).
• acpi, nfit: Prefer _DSM over _LSR for namespace label reads (bsc#112128) (bsc#1132426).
• acpi / sbs: Fix GPE storm on recent MacBookPro's (bsc#1051510).
• alsa: core: Fix card races between register and disconnect (bsc#1051510).
• alsa: echoaudio: add a check for ioremap_nocache (bsc#1051510).
• alsa: firewire: add const qualifier to identifiers for read-only symbols (bsc#1051510).
• alsa: firewire-motu: add a flag for AES/EBU on XLR interface (bsc#1051510).
• alsa: firewire-motu: add specification flag for position of flag for MIDI messages (bsc#1051510).
• alsa: firewire-motu: add support for MOTU Audio Express (bsc#1051510).
• alsa: firewire-motu: add support for Motu Traveler (bsc#1051510).
• alsa: firewire-motu: use 'version' field of unit directory to identify model (bsc#1051510).
• alsa: hda - add Lenovo IdeaCentre B550 to the power_save_blacklist (bsc#1051510).
• alsa: hda - Add two more machines to the power_save_blacklist (bsc#1051510).
• alsa: hda - Enforces runtime_resume after S3 and S4 for each codec (bsc#1051510).
• alsa: hda: Initialize power_state field properly (bsc#1051510).
• alsa: hda/realtek - Add new Dell platform for headset mode (bsc#1051510).
• alsa: hda/realtek - Add quirk for Tuxedo XC 1509 (bsc#1131442).
• alsa: hda/realtek - Add support for Acer Aspire E5-523G/ES1-432 headset mic (bsc#1051510).
• alsa: hda/realtek - Add support headset mode for DELL WYSE AIO (bsc#1051510).
• alsa: hda/realtek - Add support headset mode for New DELL WYSE NB (bsc#1051510).
• alsa: hda/realtek - add two more pin configuration sets to quirk table (bsc#1051510).
• alsa: hda/realtek - Apply the fixup for ASUS Q325UAR (bsc#1051510).
• alsa: hda/realtek: Enable ASUS X441MB and X705FD headset MIC with ALC256 (bsc#1051510).
• alsa: hda/realtek: Enable headset MIC of Acer AIO with ALC286 (bsc#1051510).
• alsa: hda/realtek: Enable headset…

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.

Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331)

• CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
• CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

This kernel update contains software mitigations for these issues, which also utilize CPU microcode updates shipped in parallel.

For more information on this set of vulnerabilities, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security issues were fixed:

• CVE-2018-16880: A flaw was found in the handle_rx() function in the vhost_net driver. A malicious virtual guest, under specific conditions, could trigger an out-of-bounds write in a kmalloc-8 slab on a virtual host which may lead to a kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (bnc#1122767).
• CVE-2019-3882: A flaw was found in the vfio interface implementation that permitted violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). (bnc#1131416 bnc#1131427).
• CVE-2019-9003: Attackers could trigger a drivers/char/ipmi/ipmi_msghandler.c use-after-free and OOPS by arranging for certain simultaneous execution of the code, as demonstrated by a 'service ipmievd restart' loop (bnc#1126704).
• CVE-2019-9500: A brcmfmac heap buffer overflow in brcmf_wowl_nd_results was fixed. (bnc#1132681).
• CVE-2019-9503: A brcmfmac frame validation bypass was fixed. (bnc#1132828).

The following non-security bugs were fixed:

• 9p: do not trust pdu content for stat item size (bsc#1051510).
• acpi: acpi_pad: Do not launch acpi_pad threads on idle cpus (bsc#1113399).
• acpi, nfit: Prefer _DSM over _LSR for namespace label reads (bsc#1132426).
• acpi / SBS: Fix GPE storm on recent MacBookPro's (bsc#1051510).
• alsa: core: Fix card races between register and disconnect (bsc#1051510).
• alsa: echoaudio: add a check for ioremap_nocache (bsc#1051510).
• alsa: firewire: add const qualifier to identifiers for read-only symbols (bsc#1051510).
• alsa: firewire-motu: add a flag for AES/EBU on XLR interface (bsc#1051510).
• alsa: firewire-motu: add specification flag for position of flag for MIDI messages (bsc#1051510).
• alsa: firewire-motu: add support for MOTU Audio Express (bsc#1051510).
• alsa: firewire-motu: add support for Motu Traveler (bsc#1051510).
• alsa: firewire-motu: use 'version' field of unit directory to identify model (bsc#1051510).
• alsa: hda - add Lenovo IdeaCentre B550 to the power_save_blacklist (bsc#1051510).
• alsa: hda - Add two more machines to the power_save_blacklist (bsc#1051510).
• alsa: hda - Enforces runtime_resume after S3 and S4 for each codec (bsc#1051510).
• alsa: hda: Initialize power_state field properly (bsc#1051510).
• alsa: hda/realtek - Add quirk for Tuxedo XC 1509 (bsc#1131442).
• alsa: hda/realtek - Add support for Acer Aspire E5-523G/ES1-432 headset mic (bsc#1051510).
• alsa: hda/realtek - Add support headset mode for DELL WYSE AIO (bsc#1051510).
• alsa: hda/realtek - Add support headset mode for New DELL WYSE NB (bsc#1051510).
• alsa: hda/realtek - add two more pin configuration sets to quirk table (bsc#1051510).
• alsa: hda/realtek: Enable ASUS X441MB and X705FD headset MIC with ALC256 (bsc#1051510).
• alsa: hda/realtek: Enable headset MIC of Acer AIO with ALC286 (bsc#1051510).
• alsa: hda/realtek: Enable headset MIC of Acer Aspire Z24-890 with ALC286 (bsc#1051510).
• alsa: hda/realtek: Enable headset mic of ASUS P5440FF with ALC256 (bsc#1051510).
• alsa: hda - Record the…

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.178 to receive various security and bugfixes.

Four new speculative execution issues have been identified in Intel CPUs. (bsc#1111331)

• CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
• CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

This kernel update contains software mitigations, utilizing CPU microcode updates shipped in parallel.

For more information on this set of information leaks, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security issues fixed:

• CVE-2018-5814: Multiple race condition errors when handling probe, disconnect, and rebind operations could be exploited to trigger a use-after-free condition or a NULL pointer dereference by sending multiple USB over IP packets (bnc#1096480).
• CVE-2018-1000204: Prevent infoleak caused by incorrect handling of the SG_IO ioctl (bsc#1096728)
• CVE-2018-10853: A flaw was found in the way the KVM hypervisor emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest (bnc#1097104).
• CVE-2018-15594: arch/x86/kernel/paravirt.c mishandled certain indirect calls, which made it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests (bnc#1105348).
• CVE-2019-9503: A brcmfmac frame validation bypass was fixed (bnc#1132828).
• CVE-2019-3882: A flaw was fixed in the vfio interface implementation that permitted violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS). Versions 3.10, 4.14 and 4.18 are vulnerable (bnc#1131416 bnc#1131427).

The following non-security bugs were fixed:

• 9p/net: fix memory leak in p9_client_create (bnc#1012382).
• 9p: use inode->i_lock to protect i_size_write() under 32-bit (bnc#1012382).
• acpi: acpi_pad: Do not launch acpi_pad threads on idle cpus (bsc#1113399).
• acpi / bus: Only call dmi_check_system() on X86 (git-fixes).
• acpi / button: make module loadable when booted in non-ACPI mode (bsc#1051510).
• acpi / device_sysfs: Avoid OF modalias creation for removed device (bnc#1012382).
• acpi: include ACPI button driver in base kernel (bsc#1062056).
• Add hlist_add_tail_rcu() (Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net) (bnc#1012382).
• alsa: bebob: use more identical mod_alias for Saffire Pro 10 I/O against Liquid Saffire 56 (bnc#1012382).
• alsa: compress: add support for 32bit calls in a 64bit kernel (bnc#1012382).
• alsa: compress: prevent potential divide by zero bugs (bnc#1012382).
• alsa: hda - Enforces runtime_resume after S3 and S4 for each codec (bnc#1012382).
• alsa: hda - Record the current power state before suspend/resume calls (bnc#1012382).
• alsa: pcm: Do not suspend stream in unrecoverable PCM state (bnc#1012382).
• alsa: pcm: Fix possible OOB access in PCM oss plugins (bnc#1012382).
• alsa: rawmidi: Fix potential Spectre v1 vulnerability (bnc#1012382).
• alsa: seq: oss: Fix Spectre v1 vulnerability (bnc#1012382).
• applicom: Fix potential Spectre v1 vulnerabilities (bnc#1012382).
• arc: fix __ffs return value to avoid build warnings (bnc#1012382).
• arc: uacces: remove lp_start, lp_end from clobber list (bnc#1012382).
• arcv2: Enable unaligned access in early ASM code (bnc#1012382).
• arm64: fix COMPAT_SHMLBA definition for large pages (bnc#1012382).
• arm64: Fix NUMA build error when !CONFIG_ACPI (fate#319981, git-fixes).
• arm64: Fix NUMA build error when !CONFIG_ACPI (git-fixes).
• arm64: hide _efistub aliases from kallsyms…

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.

Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331)

• CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
• CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

This kernel update contains software mitigations for these issues, which also utilize CPU microcode updates shipped in parallel.

For more information on this set of information leaks, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security bugs were fixed:

• CVE-2018-1128: It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay attack. Any attacker having access to ceph cluster network who is able to sniff packets on network could use this vulnerability to authenticate with ceph service and perform actions allowed by ceph service. (bnc#1096748).
• CVE-2018-1129: A flaw was found in the way signature calculation was handled by cephx authentication protocol. An attacker having access to ceph cluster network who is able to alter the message payload was able to bypass signature checks done by cephx protocol. (bnc#1096748).
• CVE-2016-8636: Integer overflow in the mem_check_range function in drivers/infiniband/sw/rxe/rxe_mr.c allowed local users to cause a denial of service (memory corruption), obtain sensitive information or possibly have unspecified other impact via a write or read request involving the 'RDMA protocol over infiniband' (aka Soft RoCE) technology (bnc#1024908).
• CVE-2017-18174: In the amd_gpio_remove function in drivers/pinctrl/pinctrl-amd.c calls the pinctrl_unregister function, leading to a double free (bnc#1080533).
• CVE-2018-1091: In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service (bnc#1087231).
• CVE-2018-1120: By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which made a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks) (bnc#1093158).
• CVE-2019-11486: The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c has multiple race conditions (bnc#1133188).
• CVE-2019-3882: A flaw was found in the vfio interface implementation that permits violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS) (bsc#1131427).
• CVE-2018-19407: The vcpu_scan_ioapic function in arch/x86/kvm/x86.c allowed local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized (bnc#1116841).
• CVE-2017-17741: The KVM implementation allowed attackers to obtain potentially sensitive information from kernel memory, aka a write_mmio stack-based out-of-bounds read, related to arch/x86/kvm/x86.c and include/trace/events/kvm.h (bnc#1073311).
• CVE-2019-9503, CVE-2019-8564: Multiple brcmfmac frame validation bypasses have been fixed (bnc#1132828, bnc#1132673).

The following non-security bugs were fixed:

• ACPI: acpi_pad: Do not launch acpi_pad threads on idle cpus (bsc#1113399).
• add mainline tags to four hyperv patches…

The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.

Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331)

• CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
• CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
• CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

This kernel update contains software mitigations for these issues, which also utilize CPU microcode updates shipped in parallel.

For more information on this set of information leaks, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security bugs were fixed:

• CVE-2016-10741: fs/xfs/xfs_aops.c allowed local users to cause a denial of service (system crash) because there is a race condition between direct and memory-mapped I/O (associated with a hole) that is handled with BUG_ON instead of an I/O failure (bnc#1114920 bnc#1124010).
• CVE-2017-1000407: By flooding the diagnostic port 0x80 an exception can be triggered leading to a kernel panic (bnc#1071021).
• CVE-2017-16533: The usbhid_parse function in drivers/hid/usbhid/hid-core.c allowed local users to cause a denial of service (out-of-bounds read and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1066674).
• CVE-2017-7273: The cp_report_fixup function in drivers/hid/hid-cypress.c allowed physically proximate attackers to cause a denial of service (integer underflow) or possibly have unspecified other impact via a crafted HID report (bnc#1031240).
• CVE-2017-7472: The KEYS subsystem allowed local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls (bnc#1034862).
• CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. (bnc#1107829).
• CVE-2018-15572: The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c did not always fill RSB upon a context switch, which made it easier for attackers to conduct userspace-userspace spectreRSB attacks (bnc#1102517 bnc#1105296).
• CVE-2018-16884: NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out (bnc#1119946).
• CVE-2018-18281: The mremap() syscall performed TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. (bnc#1113769).
• CVE-2018-18386: drivers/tty/n_tty.c allowed local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ (bnc#1094825).
• CVE-2018-18690: A local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because…

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-12819: The function __mdiobus_register() called put_device(), which triggered a fixed_mdio_bus_init use-after-free. This would cause a denial of service. (bsc#1138291)

• CVE-2019-12818: The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This used to affect nfc_llcp_build_gb in net/nfc/llcp_core.c. (bsc#1138293)

• CVE-2019-11477: A sequence of SACKs may have been crafted such that one can trigger an integer overflow, leading to a kernel panic.

• CVE-2019-11478: It was possible to send a crafted sequence of SACKs which will fragment the TCP retransmission queue. An attacker may have been able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection.

• CVE-2019-11479: An attacker could force the Linux kernel to segment its responses into multiple TCP segments. This would drastically increased the bandwidth required to deliver the same amount of data. Further, it would consume additional resources such as CPU and NIC processing power.

• CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network. (bsc#1136424)

• CVE-2019-10124: An issue was discovered in the hwpoison implementation in mm/memory-failure.c in the Linux kernel. When soft_offline_in_use_page() runs on a thp tail page after pmd is split, an attacker could cause a denial of service (bsc#1130699, CVE-2019-10124).

• CVE-2019-12382: An issue was discovered in drm_load_edid_firmware in drivers/gpu/drm/drm_edid_load.c in the Linux kernel There was an unchecked kstrdup of fwstr, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). (bsc#1136586)

• CVE-2019-11487: The Linux kernel allowed page reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It could occur with FUSE requests. (bbsc#1133190)

• CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux kernel allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server. (bsc#1120843)

• CVE-2019-11833: fs/ext4/extents.c in the Linux kernel did not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem. (bsc#1135281)

• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may have allowed an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019. (bsc##1111331)

• CVE-2018-7191: In the tun subsystem in the Linux kernel, dev_get_valid_name was not called before register_netdevice. This allowed local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. (bsc#1135603)

• CVE-2018-12126…

The SUSE Linux Enterprise 15 SP1 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-12126 CVE-2018-12127 CVE-2018-12130: Microarchitectural Store Buffer Data Sampling (MSBDS): Stored buffers on some microprocessors utilizing speculative execution which may have allowed an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019. (bsc#1103186)
• CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may have allowed an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019. (bsc#1111331)
• CVE-2019-12382: An issue was discovered in drm_load_edid_firmware in drivers/gpu/drm/drm_edid_load.c in the Linux kernel There was an unchecked kstrdup of fwstr, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash). (bsc#1136586)
• CVE-2019-10124: An issue was discovered in the hwpoison implementation in mm/memory-failure.c in the Linux kernel. When soft_offline_in_use_page() runs on a thp tail page after pmd is split, an attacker could cause a denial of service (bsc#1130699).
• CVE-2019-11486: The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c in the Linux kernel has multiple race conditions. (bsc#1133188)
• CVE-2019-11811: An issue was discovered in the Linux kernel There was a use-after-free upon attempted read access to /proc/ioports after the ipmi_si module was removed, related to drivers/char/ipmi/ipmi_si_intf.c, drivers/char/ipmi/ipmi_si_mem_io.c, and drivers/char/ipmi/ipmi_si_port_io.c. (bsc#1134397)
• CVE-2019-11487: The Linux kernel allowed page reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It could occur with FUSE requests. (bsc#1133190)
• CVE-2019-12818: The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This used to affect nfc_llcp_build_gb in net/nfc/llcp_core.c. (bsc#1138293)
• CVE-2019-11833: fs/ext4/extents.c in the Linux kernel did not zero out the unused memory region in the extent tree block, which might allow local users to obtain sensitive information by reading uninitialized data in the filesystem. (bsc#1135281)
• CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux kernel allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server. (bsc#1120843)
• CVE-2018-7191: In the tun subsystem in the Linux kernel, dev_get_valid_name was not called before register_netdevice. This allowed local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. (bsc#1135603)
• CVE-2019-11884: The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel allowed a local user to obtain potentially sensitive information from kernel stack memory via a hidPCONNADD command, because a name field may not end with a '\0' character. (bsc#1134848) -…

USN-3980-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.10 for Ubuntu 18.04 LTS.

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12130)

Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12127)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12126)

Vasily Averin and Evgenii Shatokhin discovered that a use-after-free vulnerability existed in the NFS41+ subsystem when multiple network namespaces are in use. A local attacker in a container could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16884)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2019-11091)

Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-3874)

Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA mappings. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-3882)

Marc Orr discovered that the KVM hypervisor implementation in the Linux kernel did not properly restrict APIC MSR register values when nested virtualization is used. An attacker in a guest vm could use this to cause a denial of service (host OS crash). (CVE-2019-3887)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel contained a heap buffer overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-9500)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could use this to send firmware events to the device. (CVE-2019-9503)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12130)

Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12127)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12126)

Vasily Averin and Evgenii Shatokhin discovered that a use-after-free vulnerability existed in the NFS41+ subsystem when multiple network namespaces are in use. A local attacker in a container could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16884)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2019-11091)

Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-3874)

Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA mappings. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-3882)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel contained a heap buffer overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-9500)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could use this to send firmware events to the device. (CVE-2019-9503)

USN-3981-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS and for the Linux Azure kernel for Ubuntu 14.04 LTS.

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12130)

Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12127)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2018-12126)

Vasily Averin and Evgenii Shatokhin discovered that a use-after-free vulnerability existed in the NFS41+ subsystem when multiple network namespaces are in use. A local attacker in a container could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16884)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. A local attacker could use this to expose sensitive information. (CVE-2019-11091)

Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-3874)

Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA mappings. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-3882)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel contained a heap buffer overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-9500)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could use this to send firmware events to the device. (CVE-2019-9503)

It was discovered that a race condition existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2018-20836)

It was discovered that the ext4 file system implementation in the Linux kernel did not properly zero out memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-11833)

It was discovered that the Bluetooth Human Interface Device Protocol (HIDP) implementation in the Linux kernel did not properly verify strings were NULL terminated in certain situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-11884)

It was discovered that the Linux kernel on ARM processors allowed a tracing process to modify a syscall after a seccomp decision had been made on that syscall. A local attacker could possibly use this to bypass seccomp restrictions. (CVE-2019-2054)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could use this to send firmware events to the device. (CVE-2019-9503)

It was discovered that an integer overflow existed in the Freescale (PowerPC) hypervisor manager in the Linux kernel. A local attacker with write access to /dev/fsl-hv could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10142)

Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. (CVE-2018-5383)

It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126)

Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions during speculative execution. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2019-1125)

Jann Horn discovered that a race condition existed in the Linux kernel when performing core dumps. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2019-11599)

It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for allocation errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-12614)

Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record credentials in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2019-13272)

It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-3846)