CVE-2017-16912

The "get_pipe()" function (drivers/usb/usbip/stub_rx.c) in the Linux Kernel before version 4.14.8, 4.9.71, and 4.4.114 allows attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet.

This kernel update is based on the upstream 4.4.114 and fixes several security issues.

The most important fixes in this update is for the security issue named "Spectre, variant 2 (CVE-2017-5715)" that is partly mitigated by enabling retpoline support. For full retpoline mitigation, kernel needs to be built with a retpoline-aware cpmpiler, something that wont happend in Mga5 as Mageia 5 has reached End of Support at December 31st, 2017 (even if we have been providing some extended support due to Meltdown/Spectre issues. If you want to receive further fixes regarding theese issues, you really need to upgrade to Mageia 6.

The BPF interpreter has been used as part of the spectre 2 attack CVE-2017-5715. To make attacker job harder introduce BPF_JIT_ALWAYS_ON config option that removes interpreter from the kernel in favor of JIT-only mode. Note: In Mageia 5 we have BPF disabled by default, so it's not really an issue, but the fixes are still needed in case someone enables it

KVM on x86 gained a memory barrier on vmcs field lookup as part of mitigating Spectre variant 2 (CVE-2017-5753).

Other security fixes in this update:

The vhci_hcd driver in the Linux Kernel before version 4.14.8 and 4.4.114 allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (CVE-2017-16911).

The "get_pipe()" function (drivers/usb/usbip/stub_rx.c) in the Linux Kernel before version 4.14.8, 4.9.71, and 4.4.114 allows attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet (CVE-2017-16912).

The "stub_recv_cmd_submit()" function (drivers/usb/usbip/stub_rx.c) in the Linux Kernel before version 4.14.8, 4.9.71, and 4.4.114 when handling CMD_SUBMIT packets allows attackers to cause a denial of service (arbitrary memory allocation) via a specially crafted USB over IP packet (CVE-2017-16913).

The "stub_send_ret_submit()" function (drivers/usb/usbip/stub_tx.c) in the Linux Kernel before version 4.14.8, 4.9.71, 4.1.49, and 4.4.107 allows attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (CVE-2017-16914).

Linux kernel version 3.3-rc1 and later is affected by a vulnerability lies in the processing of incoming L2CAP commands - ConfigRequest, and ConfigResponse messages. This info leak is a result of uninitialized stack variables that may be returned to an attacker in their uninitialized state. By manipulating the code flows that precede the handling of these configuration messages, an attacker can also gain some control over which data will be held in the uninitialized stack variables. This can allow him to bypass KASLR, and stack canaries protection - as both pointers and stack canaries may be leaked in this manner (CVE-2017-1000410).

The dccp_disconnect function in net/dccp/proto.c in the Linux kernel through 4.14.3 allows local users to gain privileges or cause a denial of service (use-after-free) via an AF_UNSPEC connect system call during the DCCP_LISTEN state (CVE-2017-8824).

For other fixes, see the referenced changelogs.

The SUSE Linux Enterprise 12 SP2 kernel was updated to 4.4.120 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2017-13166: An elevation of privilege vulnerability in the v4l2 video driver was fixed. (bnc#1072865).
• CVE-2017-15951: The KEYS subsystem did not correctly synchronize the actions of updating versus finding a key in the 'negative' state to avoid a race condition, which allowed local users to cause a denial of service or possibly have unspecified other impact via crafted system calls (bnc#1062840 bnc#1065615).
• CVE-2017-16644: The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).
• CVE-2017-16912: The 'get_pipe()' function (drivers/usb/usbip/stub_rx.c) allowed attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet (bnc#1078673).
• CVE-2017-16913: The 'stub_recv_cmd_submit()' function (drivers/usb/usbip/stub_rx.c) when handling CMD_SUBMIT packets allowed attackers to cause a denial of service (arbitrary memory allocation) via a specially crafted USB over IP packet (bnc#1078672).
• CVE-2017-17975: Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c allowed attackers to cause a denial of service (system crash) or possibly have unspecified other impact by triggering failure of audio registration, because a kfree of the usbtv data structure occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and free this data structure (bnc#1074426).
• CVE-2017-18208: The madvise_willneed function in mm/madvise.c allowed local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
• CVE-2018-8087: Memory leak in the hwsim_new_radio_nl function in drivers/net/wireless/mac80211_hwsim.c allowed local users to cause a denial of service (memory consumption) by triggering an out-of-array error case (bnc#1085053).
• CVE-2018-1000026: A insufficient input validation vulnerability in the bnx2x network card driver could result in DoS: Network card firmware assertion takes card off-line. This attack appear to be exploitable via An attacker on a must pass a very large, specially crafted packet to the bnx2x card. This can be done from an untrusted guest VM. (bnc#1079384).
• CVE-2018-1068: Insufficient user provided offset checking in the ebtables compat code allowed local attackers to overwrite kernel memory and potentially execute code. (bsc#1085107)

The following non-security bugs were fixed:

• acpi / bus: Leave modalias empty for devices which are not present (bnc#1012382).
• acpi: sbshc: remove raw pointer from printk() message (bnc#1012382).
• Add delay-init quirk for Corsair K70 RGB keyboards (bnc#1012382).
• add ip6_make_flowinfo helper (bsc#1042286).
• ahci: Add Intel Cannon Lake PCH-H PCI ID (bnc#1012382).
• ahci: Add PCI ids for Intel Bay Trail, Cherry Trail and Apollo Lake AHCI (bnc#1012382).
• ahci: Annotate PCI ids for mobile Intel chipsets as such (bnc#1012382).
• alpha: fix crash if pthread_create races with signal delivery (bnc#1012382).
• alpha: fix reboot on Avanti platform (bnc#1012382).
• alsa: hda/ca0132 - fix possible NULL pointer use (bnc#1012382).
• alsa: hda - Fix headset mic detection problem for two Dell machines (bnc#1012382).
• alsa: hda/realtek - Add headset mode support for Dell laptop (bsc#1031717).
• alsa: hda/realtek: PCI quirk for Fujitsu U7x7 (bnc#1012382).
• alsa: hda - Reduce the suspend time consumption for ALC256 (bsc#1031717).
• alsa: hda - Use IS_REACHABLE() for dependency on input (bsc#1031717).
• alsa: seq: Fix racy pool initializations (bnc#1012382).
• alsa: seq: Fix regression by incorrect ioctl_mutex usages (bnc#1012382).
• alsa: usb-audio: add implicit fb quirk for Behringer UFX1204…

The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.120 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2017-13166: An elevation of privilege vulnerability in the v4l2 video driver. (bnc#1072865).
• CVE-2017-15951: The KEYS subsystem did not correctly synchronize the actions of updating versus finding a key in the 'negative' state to avoid a race condition, which allowed local users to cause a denial of service or possibly have unspecified other impact via crafted system calls (bnc#1062840 bnc#1065615).
• CVE-2017-16644: The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).
• CVE-2017-16912: The 'get_pipe()' function (drivers/usb/usbip/stub_rx.c) allowed attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet (bnc#1078673).
• CVE-2017-16913: The 'stub_recv_cmd_submit()' function (drivers/usb/usbip/stub_rx.c) when handling CMD_SUBMIT packets allowed attackers to cause a denial of service (arbitrary memory allocation) via a specially crafted USB over IP packet (bnc#1078672).
• CVE-2017-17975: Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c allowed attackers to cause a denial of service (system crash) or possibly have unspecified other impact by triggering failure of audio registration, because a kfree of the usbtv data structure occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and free this data structure (bnc#1074426).
• CVE-2017-18174: The amd_gpio_remove function in drivers/pinctrl/pinctrl-amd.c calls the pinctrl_unregister function, leading to a double free (bnc#1080533).
• CVE-2017-18208: The madvise_willneed function in mm/madvise.c allowed local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
• CVE-2018-1000026: A insufficient input validation vulnerability in bnx2x network card driver could result in DoS: Network card firmware assertion takes card off-line. This attack appear to be exploitable via An attacker on a must pass a very large, specially crafted packet to the bnx2x card. This can be done from an untrusted guest VM. (bnc#1079384).
• CVE-2018-8087: Memory leak in the hwsim_new_radio_nl function in drivers/net/wireless/mac80211_hwsim.c allowed local users to cause a denial of service (memory consumption) by triggering an out-of-array error case (bnc#1085053).
• CVE-2018-1068: Insufficient user provided offset checking in the ebtables compat code allowed local attackers to overwrite kernel memory and potentially execute code. (bsc#1085107)

The following non-security bugs were fixed:

• acpi / bus: Leave modalias empty for devices which are not present (bnc#1012382).
• acpi, nfit: fix health event notification (FATE#321135, FATE#321217, FATE#321256, FATE#321391, FATE#321393).
• acpi, nfit: fix register dimm error handling (FATE#321135, FATE#321217, FATE#321256, FATE#321391, FATE#321393).
• acpi: sbshc: remove raw pointer from printk() message (bnc#1012382).
• Add delay-init quirk for Corsair K70 RGB keyboards (bnc#1012382).
• add ip6_make_flowinfo helper (bsc#1042286).
• ahci: Add Intel Cannon Lake PCH-H PCI ID (bnc#1012382).
• ahci: Add PCI ids for Intel Bay Trail, Cherry Trail and Apollo Lake AHCI (bnc#1012382).
• ahci: Annotate PCI ids for mobile Intel chipsets as such (bnc#1012382).
• alpha: fix crash if pthread_create races with signal delivery (bnc#1012382).
• alpha: fix reboot on Avanti platform (bnc#1012382).
• alsa: hda/ca0132 - fix possible NULL pointer use (bnc#1012382).
• alsa: hda - Fix headset mic detection problem for two Dell machines (bnc#1012382).
• alsa: hda/realtek - Add headset mode support for Dell laptop (bsc#1031717).
• alsa: hda/realtek: PCI quirk for…

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

The following security bugs were fixed:

• CVE-2018-1068: Fixed flaw in the implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory (bnc#1085107).
• CVE-2017-18221: The __munlock_pagevec function allowed local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls (bnc#1084323).
• CVE-2018-1066: Prevent NULL pointer dereference in fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allowed an attacker controlling a CIFS server to kernel panic a client that has this server mounted, because an empty TargetInfo field in an NTLMSSP setup negotiation response was mishandled during session recovery (bnc#1083640).
• CVE-2017-13166: Prevent elevation of privilege vulnerability in the kernel v4l2 video driver (bnc#1072865).
• CVE-2017-16911: The vhci_hcd driver allowed local attackers to disclose kernel memory addresses. Successful exploitation required that a USB device was attached over IP (bnc#1078674).
• CVE-2017-15299: The KEYS subsystem mishandled use of add_key for a key that already exists but is uninstantiated, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted system call (bnc#1063416).
• CVE-2017-18208: The madvise_willneed function kernel allowed local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
• CVE-2018-7566: The ALSA sequencer core initializes the event pool on demand by invoking snd_seq_pool_init() when the first write happens and the pool is empty. A user could have reset the pool size manually via ioctl concurrently, which may have lead UAF or out-of-bound access (bsc#1083483).
• CVE-2017-18204: The ocfs2_setattr function allowed local users to cause a denial of service (deadlock) via DIO requests (bnc#1083244).
• CVE-2017-16644: The hdpvr_probe function allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).
• CVE-2018-6927: The futex_requeue function allowed attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757).
• CVE-2017-16914: The 'stub_send_ret_submit()' function allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669).
• CVE-2016-7915: The hid_input_field function allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device (bnc#1010470).
• CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions did unbalanced refcounting when a SCSI I/O vector had small consecutive buffers belonging to the same page. The bio_add_pc_page function merged them into one, but the page reference was never dropped. This caused a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition (bnc#1062568).
• CVE-2017-16912: The 'get_pipe()' function allowed attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet (bnc#1078673).
• CVE-2017-16913: The 'stub_recv_cmd_submit()' function when handling CMD_SUBMIT packets allowed attackers to cause a denial of service (arbitrary memory allocation) via a specially crafted USB over IP packet (bnc#1078672).
• CVE-2018-5332: The rds_message_alloc_sgs() function did not validate a value that is used during DMA page allocation, leading…

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

The following security bugs were fixed:

• CVE-2018-1068: Fixed flaw in the implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory (bnc#1085107).
• CVE-2017-18221: The __munlock_pagevec function allowed local users to cause a denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall and munlockall system calls (bnc#1084323).
• CVE-2018-1066: Prevent NULL pointer dereference in fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allowed an attacker controlling a CIFS server to kernel panic a client that has this server mounted, because an empty TargetInfo field in an NTLMSSP setup negotiation response was mishandled during session recovery (bnc#1083640).
• CVE-2017-13166: Prevent elevation of privilege vulnerability in the kernel v4l2 video driver (bnc#1072865).
• CVE-2017-16911: The vhci_hcd driver allowed local attackers to disclose kernel memory addresses. Successful exploitation required that a USB device was attached over IP (bnc#1078674).
• CVE-2017-15299: The KEYS subsystem mishandled use of add_key for a key that already exists but is uninstantiated, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted system call (bnc#1063416).
• CVE-2017-18208: The madvise_willneed function kernel allowed local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
• CVE-2018-7566: The ALSA sequencer core initializes the event pool on demand by invoking snd_seq_pool_init() when the first write happens and the pool is empty. A user could have reset the pool size manually via ioctl concurrently, which may have lead UAF or out-of-bound access (bsc#1083483).
• CVE-2017-18204: The ocfs2_setattr function allowed local users to cause a denial of service (deadlock) via DIO requests (bnc#1083244).
• CVE-2017-16644: The hdpvr_probe function allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).
• CVE-2018-6927: The futex_requeue function allowed attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757).
• CVE-2017-16914: The 'stub_send_ret_submit()' function allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669).
• CVE-2016-7915: The hid_input_field function allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device (bnc#1010470).
• CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions did unbalanced refcounting when a SCSI I/O vector had small consecutive buffers belonging to the same page. The bio_add_pc_page function merged them into one, but the page reference was never dropped. This caused a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition (bnc#1062568).
• CVE-2017-16912: The 'get_pipe()' function allowed attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet (bnc#1078673).
• CVE-2017-16913: The 'stub_recv_cmd_submit()' function when handling CMD_SUBMIT packets allowed attackers to cause a denial of service (arbitrary memory allocation) via a specially crafted USB over IP packet (bnc#1078672).
• CVE-2018-5332: The rds_message_alloc_sgs() function did not validate a value that is used during DMA page allocation,…

The SUSE Linux Enterprise 12 SP3 Realtime kernel was updated to 4.4.120 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2017-5715: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032).

  The previous fix using CPU Microcode has been complemented by building the Linux Kernel with return trampolines aka 'retpolines'.

• CVE-2017-13166: An elevation of privilege vulnerability in the v4l2 video driver. (bnc#1072865).

• CVE-2017-15129: A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel. The function get_net_ns_by_id() in net/core/net_namespace.c did not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely (bnc#1074839).

• CVE-2017-15951: The KEYS subsystem in the Linux kernel did not correctly synchronize the actions of updating versus finding a key in the 'negative' state to avoid a race condition, which allowed local users to cause a denial of service or possibly have unspecified other impact via crafted system calls (bnc#1065615).

• CVE-2017-16912: The 'get_pipe()' function (drivers/usb/usbip/stub_rx.c) in the Linux Kernel allowed attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet (bnc#1078673).

• CVE-2017-16913: The 'stub_recv_cmd_submit()' function (drivers/usb/usbip/stub_rx.c) in the Linux Kernel when handling CMD_SUBMIT packets allowed attackers to cause a denial of service (arbitrary memory allocation) via a specially crafted USB over IP packet (bnc#1078672).

• CVE-2017-17712: The raw_sendmsg() function in net/ipv4/raw.c in the Linux kernel has a race condition in inet->hdrincl that leads to uninitialized stack pointer usage; this allowed a local user to execute code and gain privileges (bnc#1073229 1073230).

• CVE-2017-17862: kernel/bpf/verifier.c in the Linux kernel ignores unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service (bnc#1073928).

• CVE-2017-17864: kernel/bpf/verifier.c in the Linux kernel mishandled states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allowed local users to obtain potentially sensitive address information, aka a 'pointer leak (bnc#1073928).

• CVE-2017-17975: Use-after-free in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c allowed attackers to cause a denial of service (system crash) or possibly have unspecified other impact by triggering failure of audio registration, because a kfree of the usbtv data structure occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and free this data structure (bnc#1074426).

• CVE-2017-18017: The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel allowed remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action (bnc#1074488).

• CVE-2017-18174: In the Linux kernel the amd_gpio_remove function in drivers/pinctrl/pinctrl-amd.c calls the pinctrl_unregister function, leading to a double free (bnc#1080533).

• CVE-2017-18208: The madvise_willneed function in mm/madvise.c allowed local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).

• CVE-2018-1000004: In the…

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2017-5715: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032).

  Enhancements and bugfixes over the previous fixes have been added to this kernel.

• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have allowed local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).

• CVE-2018-7757: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c allowed local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file (bnc#1084536).

• CVE-2018-7566: There was a buffer overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user (bnc#1083483).

• CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260).

• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).

• CVE-2017-13166: An elevation of privilege vulnerability in the kernel v4l2 video driver. (bnc#1072865).

• CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allowed local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242).

• CVE-2017-16911: The vhci_hcd driver allowed allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (bnc#1078674).

• CVE-2017-18208: The madvise_willneed function in mm/madvise.c local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).

• CVE-2017-16644: The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).

• CVE-2018-6927: The futex_requeue function in kernel/futex.c in the Linux kernel might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757).

• CVE-2017-16914: The 'stub_send_ret_submit()' function (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669).

• CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device, as demonstrated by a Logitech DJ receiver (bnc#1010470).

• CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c attempted to support a FRAGLIST feature without proper memory allocation, which allowed guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets (bnc#940776).

• CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions in block/bio.c did unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a…

The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-1087: And an unprivileged KVM guest user could use this flaw to potentially escalate their privileges inside a guest. (bsc#1087088)
• CVE-2018-8897: An unprivileged system user could use incorrect set up interrupt stacks to crash the Linux kernel resulting in DoS issue. (bsc#1087088)
• CVE-2018-10124: The kill_something_info function in kernel/signal.c might allow local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might allow local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• CVE-2018-7757: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c allowed local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file (bnc#1084536 1087209).
• CVE-2018-7566: A Buffer Overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user was fixed (bnc#1083483).
• CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260).
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2017-13166: An elevation of privilege vulnerability in the kernel v4l2 video driver. (bnc#1072865).
• CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242).
• CVE-2017-16911: The vhci_hcd driver allowed allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (bnc#1078674).
• CVE-2017-18208: The madvise_willneed function in mm/madvise.c allowed local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
• CVE-2017-16644: The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).
• CVE-2018-6927: The futex_requeue function in kernel/futex.c might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757).
• CVE-2017-16914: The 'stub_send_ret_submit()' function (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669).
• CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device, as demonstrated by a Logitech DJ receiver (bnc#1010470).
• CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c attempted to support a FRAGLIST feature without proper memory allocation, which allowed guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets (bnc#940776).
• CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions in block/bio.c did unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory…

The SUSE Linux Enterprise 11 SP4 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-10124: The kill_something_info function in kernel/signal.c might have allowed local users to cause a denial of service via an INT_MIN argument (bnc#1089752).
• CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have allowed local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608).
• CVE-2018-7757: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c allowed local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file (bnc#1084536).
• CVE-2018-7566: Buffer overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user potentially allowing for code execution (bnc#1083483).
• CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260 1088268).
• CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function could have beenexploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162).
• CVE-2017-13166: Prevent elevation of privilege vulnerability in the video driver (bnc#1072865).
• CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242).
• CVE-2017-16911: The vhci_hcd driver allowed local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (bnc#1078674).
• CVE-2017-18208: The madvise_willneed function in mm/madvise.c allowed local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
• CVE-2017-16644: The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118).
• CVE-2018-6927: The futex_requeue function in kernel/futex.c allowed attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757).
• CVE-2017-16914: The 'stub_send_ret_submit()' function (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669).
• CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device, as demonstrated by a Logitech DJ receiver (bnc#1010470).
• CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c attempted to support a FRAGLIST feature without proper memory allocation, which allowed guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets (bnc#940776).
• CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions in block/bio.c did unbalanced refcounting when a SCSI I/O vector had small consecutive buffers belonging to the same page. The bio_add_pc_page function merged them into one, but the page reference was never dropped. This caused a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition (bnc#1062568).
• CVE-2017-16912: The…

Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16995)

It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-0861)

It was discovered that the KVM implementation in the Linux kernel allowed passthrough of the diagnostic I/O port 0x80. An attacker in a guest VM could use this to cause a denial of service (system crash) in the host OS. (CVE-2017-1000407)

It was discovered that an information disclosure vulnerability existed in the ACPI implementation of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory addresses). (CVE-2017-11472)

It was discovered that a use-after-free vulnerability existed in the network namespaces implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-15129)

It was discovered that the Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel contained a use-after-free when handling device removal. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16528)

Andrey Konovalov discovered that the usbtest device driver in the Linux kernel did not properly validate endpoint metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16532)

Andrey Konovalov discovered that the Conexant cx231xx USB video capture driver in the Linux kernel did not properly validate interface descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16536)

Andrey Konovalov discovered that the SoundGraph iMON USB driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16537)

Andrey Konovalov discovered that the IMS Passenger Control Unit USB driver in the Linux kernel did not properly validate device descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16645)

Andrey Konovalov discovered that the DiBcom DiB0700 USB DVB driver in the Linux kernel did not properly handle detach events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16646)

Andrey Konovalov discovered that the CDC USB Ethernet driver did not properly validate device descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16649)

Andrey Konovalov discovered that the QMI WWAN USB driver did not properly validate device descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16650)

It was discovered that the USB Virtual Host Controller Interface (VHCI) driver in the Linux kernel contained an information disclosure vulnerability. A physically proximate attacker could use this to expose sensitive information (kernel memory). (CVE-2017-16911)

It was discovered that the USB over IP implementation in the Linux kernel did not validate endpoint numbers. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-16912)

It was discovered that the USB over IP implementation in the Linux kernel did not properly validate CMD_SUBMIT packets. A remote attacker could use this to cause a denial of service (excessive memory consumption). (CVE-2017-16913)

It was discovered that the USB over IP implementation in the Linux kernel contained…

USN-3619-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS.

Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16995)

It was discovered that a race condition leading to a use-after-free vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-0861)

It was discovered that the KVM implementation in the Linux kernel allowed passthrough of the diagnostic I/O port 0x80. An attacker in a guest VM could use this to cause a denial of service (system crash) in the host OS. (CVE-2017-1000407)

It was discovered that an information disclosure vulnerability existed in the ACPI implementation of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory addresses). (CVE-2017-11472)

It was discovered that a use-after-free vulnerability existed in the network namespaces implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-15129)

It was discovered that the Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel contained a use-after-free when handling device removal. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16528)

Andrey Konovalov discovered that the usbtest device driver in the Linux kernel did not properly validate endpoint metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16532)

Andrey Konovalov discovered that the Conexant cx231xx USB video capture driver in the Linux kernel did not properly validate interface descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16536)

Andrey Konovalov discovered that the SoundGraph iMON USB driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16537)

Andrey Konovalov discovered that the IMS Passenger Control Unit USB driver in the Linux kernel did not properly validate device descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16645)

Andrey Konovalov discovered that the DiBcom DiB0700 USB DVB driver in the Linux kernel did not properly handle detach events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16646)

Andrey Konovalov discovered that the CDC USB Ethernet driver did not properly validate device descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16649)

Andrey Konovalov discovered that the QMI WWAN USB driver did not properly validate device descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16650)

It was discovered that the USB Virtual Host Controller Interface (VHCI) driver in the Linux kernel contained an information disclosure vulnerability. A physically proximate attacker could use this to expose sensitive information (kernel memory). (CVE-2017-16911)

It was discovered that the USB over IP implementation in the Linux kernel did not validate endpoint numbers. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-16912)

It was discovered that the USB over IP implementation in the Linux kernel did not properly validate…

Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel did not properly validate meta block groups. An attacker with physical access could use this to specially craft an ext4 image that causes a denial of service (system crash). (CVE-2016-10208)

It was discovered that an information disclosure vulnerability existed in the ACPI implementation of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory addresses). (CVE-2017-11472)

It was discovered that a buffer overflow existed in the ACPI table parsing implementation in the Linux kernel. A local attacker could use this to construct a malicious ACPI table that, when loaded, caused a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-11473)

It was discovered that the generic SCSI driver in the Linux kernel did not properly initialize data returned to user space in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-14991)

It was discovered that a race condition existed in the packet fanout implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-15649)

Andrey Konovalov discovered that the Ultra Wide Band driver in the Linux kernel did not properly check for an error condition. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16526)

Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16527)

Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel did not properly validate USB audio buffer descriptors. A physically proximate attacker could use this cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16529)

Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB interface association descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16531)

Andrey Konovalov discovered that the usbtest device driver in the Linux kernel did not properly validate endpoint metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16532)

Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB HID descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16533)

Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB BOS metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16535)

Andrey Konovalov discovered that the Conexant cx231xx USB video capture driver in the Linux kernel did not properly validate interface descriptors. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16536)

Andrey Konovalov discovered that the SoundGraph iMON USB driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16537)

It was discovered that the DM04/QQBOX USB driver in the Linux kernel did not properly handle device attachment and warm-start. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16538)

Andrey Konovalov discovered an out-of-bounds read in the GTCO digitizer USB driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.…