CVE-2020-16092

In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.

In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.

Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:Rocky Linux module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.

Security Fix(es):

• libvirt: double free in qemuAgentGetInterfaces() in qemu_agent.c (CVE-2020-25637)

• QEMU: heap buffer overflow in msix_table_mmio_write() in hw/pci/msix.c (CVE-2020-27821)

• QEMU: ide: atapi: OOB access while processing read commands (CVE-2020-29443)

• QEMU: heap buffer overflow in iscsi_aio_ioctl_cb() in block/iscsi.c may lead to information disclosure (CVE-2020-11947)

• QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c (CVE-2020-16092)

• QEMU: infinite loop in e1000e_write_packet_to_guest() in hw/net/e1000e_core.c (CVE-2020-25707)

• QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-ehci.c (CVE-2020-25723)

• QEMU: e1000e: infinite loop scenario in case of null packet descriptor (CVE-2020-28916)

• QEMU: slirp: out-of-bounds access while processing ARP/NCSI packets (CVE-2020-29129, CVE-2020-29130)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.

In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.

Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.

Security Fix(es):

• libvirt: double free in qemuAgentGetInterfaces() in qemu_agent.c (CVE-2020-25637)

• QEMU: heap buffer overflow in msix_table_mmio_write() in hw/pci/msix.c (CVE-2020-27821)

• QEMU: ide: atapi: OOB access while processing read commands (CVE-2020-29443)

• QEMU: heap buffer overflow in iscsi_aio_ioctl_cb() in block/iscsi.c may lead to information disclosure (CVE-2020-11947)

• QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c (CVE-2020-16092)

• QEMU: infinite loop in e1000e_write_packet_to_guest() in hw/net/e1000e_core.c (CVE-2020-25707)

• QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-ehci.c (CVE-2020-25723)

• QEMU: e1000e: infinite loop scenario in case of null packet descriptor (CVE-2020-28916)

• QEMU: slirp: out-of-bounds access while processing ARP/NCSI packets (CVE-2020-29129, CVE-2020-29130)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

This update for qemu fixes the following issues:

• CVE-2020-14364: Fixed an OOB access while processing USB packets (bsc#1175441,bsc#1176494).
• CVE-2020-16092: Fixed a denial of service in packet processing of various emulated NICs (bsc#1174641).
• CVE-2020-15863: Fixed a buffer overflow in the XGMAC device (bsc#1174386).
• CVE-2020-24352: Fixed an out-of-bounds read/write in ati-vga device emulation in ati_2d_blt (bsc#1175370).
• Allow to IPL secure guests with -no-reboot (bsc#1174863)

This update was imported from the SUSE:SLE-15-SP2:Update update project.

These are all security issues fixed in the qemu-6.1.0-32.1 package on the GA media of openSUSE Tumbleweed.

This update for qemu fixes the following issues:

• CVE-2020-13361: Fixed an OOB access possibility in ES1370 audio device emulation (bsc#1172384).
• CVE-2020-14364: Fixed an OOB access while processing USB packets (bsc#1175441).
• CVE-2020-16092: Fixed a denial of service in packet processing of various emulated NICs (bsc#1174641).
• CVE-2020-15863: Fixed a buffer overflow in the XGMAC device (bsc#1174386).
• Fix OOB access in ROM loading

This update for qemu fixes the following issues:

• CVE-2020-14364: Fixed an OOB access while processing USB packets (bsc#1175441,bsc#1176494).
• CVE-2020-16092: Fixed a denial of service in packet processing of various emulated NICs (bsc#1174641).
• CVE-2020-15863: Fixed a buffer overflow in the XGMAC device (bsc#1174386).
• CVE-2020-24352: Fixed an out-of-bounds read/write in ati-vga device emulation in ati_2d_blt (bsc#1175370).
• Allow to IPL secure guests with -no-reboot (bsc#1174863)

This update for qemu fixes the following issues:

• Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)
• Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362 bsc#1172383)
• Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)
• Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)
• Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)
• Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)
• Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)
• Fix infinite loop (DoS) in e1000e device emulation (CVE-2020-28916, bsc#1179468)
• Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)
• Fix null pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)
• Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)
• Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)
• Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)
• Fix OOB access in SLIRP ARP packet processing (CVE-2020-29130, bsc#1179467)
• Fix null pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659 bsc#1172386
• Fix OOB access in iscsi (CVE-2020-11947 bsc#1180523)
• Fix OOB access in vmxnet3 emulation (CVE-2021-20203 bsc#1181639)
• Fix buffer overflow in the XGMAC device (CVE-2020-15863, bsc#1174386)
• Fix DoS in packet processing of various emulated NICs (CVE-2020-16092 bsc#1174641)
• Fix OOB access while processing USB packets (CVE-2020-14364 bsc#1175441)
• Fix package scripts to not use hard coded paths for temporary working directories and log files (bsc#1182425)
• Fix potential privilege escalation in virtfs (CVE-2021-20181 bsc#1182137)
• Fix OOB access possibility in ES1370 audio device emulation (CVE-2020-13361 bsc#1172384)
• Fix OOB access in ROM loading (CVE-2020-13765 bsc#1172478)

This update for qemu fixes the following issues:

• Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)
• Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362, bsc#1172383)
• Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)
• Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)
• Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)
• Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)
• Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)
• Fix infinite loop (DoS) in e1000e device emulation (CVE-2020-28916, bsc#1179468)
• Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)
• Fix null pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)
• Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)
• Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)
• Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)
• Fix OOB access in SLIRP ARP/NCSI packet processing (CVE-2020-29129, bsc#1179466, CVE-2020-29130, bsc#1179467)
• Fix null pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659, bsc#1172386)
• Fix OOB access in iscsi (CVE-2020-11947, bsc#1180523)
• Fix OOB access in vmxnet3 emulation (CVE-2021-20203, bsc#1181639)
• Fix buffer overflow in the XGMAC device (CVE-2020-15863, bsc#1174386)
• Fix DoS in packet processing of various emulated NICs (CVE-2020-16092, bsc#1174641)
• Fix OOB access while processing USB packets (CVE-2020-14364, bsc#1175441)
• Fix package scripts to not use hard coded paths for temporary working directories and log files (bsc#1182425)
• Fix potential privilege escalation in virtfs (CVE-2021-20181, bsc#1182137)
• Fix OOB access possibility in ES1370 audio device emulation (CVE-2020-13361, bsc#1172384)
• Fix OOB access in ROM loading (CVE-2020-13765, bsc#1172478)
• Fix qemu-testsuite failure
• Fix vm migration is failing with input/output error when nfs server is disconnected (bsc#1119115)
• Fix OOB access in ARM interrupt handling (CVE-2021-20221, bsc#1181933)
• Fix slowness in arm32 emulation (bsc#1112499)
• Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)
• Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362, bsc#1172383)
• Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)
• Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)
• Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)
• Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)
• Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)
• Fix infinite loop (DoS) in e1000e device emulation (CVE-2020-28916, bsc#1179468)
• Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)
• Fix null pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)
• Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)
• Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)
• Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)
• Fix OOB access in SLIRP ARP/NCSI packet processing (CVE-2020-29129, bsc#1179466, CVE-2020-29130, bsc#1179467)
• Fix null pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659, bsc#1172386)
• Fix OOB access in iscsi (CVE-2020-11947, bsc#1180523)
• Fix OOB access in vmxnet3 emulation (CVE-2021-20203, bsc#1181639)
• Fix buffer overflow in the XGMAC device (CVE-2020-15863, bsc#1174386)
• Fix DoS in packet processing of various emulated NICs (CVE-2020-16092, bsc#1174641)
• Fix OOB access while processing USB packets (CVE-2020-14364, bsc#1175441)
• Fix package scripts to not use hard coded paths for temporary working directories and log files (bsc#1182425)…

This update for qemu fixes the following issues:

• Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)
• Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362 bsc#1172383)
• Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)
• Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)
• Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)
• Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)
• Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)
• Fix infinite loop (DoS) in e1000e device emulation (CVE-2020-28916, bsc#1179468)
• Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)
• Fix null pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)
• Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)
• Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)
• Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)
• Fix OOB access in SLIRP ARP/NCSI packet processing (CVE-2020-29129, bsc#1179466, CVE-2020-29130, bsc#1179467)
• Fix null pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659 bsc#1172386
• Fix OOB access in iscsi (CVE-2020-11947 bsc#1180523)
• Fix OOB access in vmxnet3 emulation (CVE-2021-20203 bsc#1181639)
• Fix buffer overflow in the XGMAC device (CVE-2020-15863 bsc#1174386)
• Fix DoS in packet processing of various emulated NICs (CVE-2020-16092 bsc#1174641)
• Fix OOB access while processing USB packets (CVE-2020-14364 bsc#1175441)
• Fix package scripts to not use hard coded paths for temporary working directories and log files (bsc#1182425)
• Fix potential privilege escalation in virtfs (CVE-2021-20181 bsc#1182137)
• Drop the 'ampersand 0x25 shift altgr' line in pt-br keymap file (bsc#1129962)
• Fix migration failure with error message: 'error while loading state section id 3(ram) (bsc#1154790)
• Fix OOB access possibility in ES1370 audio device emulation (CVE-2020-13361 bsc#1172384)
• Fix OOB access in ROM loading (CVE-2020-13765 bsc#1172478)
• Fix OOB access in ARM interrupt handling (CVE-2021-20221 bsc#1181933)
• Tweaks to spec file for better formatting, and remove not needed BuildRequires for e2fsprogs-devel and libpcap-devel
• Use '%service_del_postun_without_restart' instead of '%service_del_postun' to avoid 'Failed to try-restart [email protected]' error while updating the qemu-guest-agent. (bsc#1178565)
• Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)

This update for qemu fixes the following issues:

• Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)
• Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362 bsc#1172383)
• Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)
• Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)
• Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)
• Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)
• Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)
• Fix infinite loop (DoS) in e1000e device emulation (CVE-2020-28916, bsc#1179468)
• Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)
• Fix heap overflow in MSIx emulation (CVE-2020-27821, bsc#1179686)
• Fix null pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)
• Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)
• Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)
• Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)
• Fix OOB access in SLIRP ARP/NCSI packet processing (CVE-2020-29129, bsc#1179466, CVE-2020-29130, bsc#1179467)
• Fix null pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659 bsc#1172386)
• Fix issue where s390 guest fails to find zipl boot menu index (bsc#1183979)
• Fix OOB access in iscsi (CVE-2020-11947 bsc#1180523)
• Fix OOB access in vmxnet3 emulation (CVE-2021-20203 bsc#1181639)
• Fix package scripts to not use hard coded paths for temporary working directories and log files (bsc#1182425)
• Fix potential privilege escalation in virtfs (CVE-2021-20181 bsc#1182137)
• Apply fixes to qemu scsi passthrough with respect to timeout and error conditions, including using more correct status codes. (bsc#1178049)
• Fix OOB access in ARM interrupt handling (CVE-2021-20221 bsc#1181933)
• Tweaks to spec file for better formatting, and remove not needed BuildRequires for e2fsprogs-devel and libpcap-devel
• Fix OOB access possibility in ES1370 audio device emulation (CVE-2020-13361 bsc#1172384)
• Fix OOB access in ROM loading (CVE-2020-13765 bsc#1172478)
• Fix OOB access while processing USB packets (CVE-2020-14364 bsc#1175441)
• Fix DoS in packet processing of various emulated NICs (CVE-2020-16092 bsc#1174641)
• Fix buffer overflow in the XGMAC device (CVE-2020-15863 bsc#1174386)
• Use '%service_del_postun_without_restart' instead of '%service_del_postun' to avoid 'Failed to try-restart [email protected]' error while updating the qemu-guest-agent. (bsc#1178565)

This update for qemu fixes the following issues:

• Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)
• Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362 bsc#1172383)
• Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)
• Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)
• Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)
• Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)
• Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)
• Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)
• Fix null pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)
• Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)
• Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)
• Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)
• Fix OOB access in SLIRP ARP packet processing (CVE-2020-29130, bsc#1179467)
• Fix null pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659 bsc#1172386
• Fix OOB access in iscsi (CVE-2020-11947 bsc#1180523)
• Fix OOB access in vmxnet3 emulation (CVE-2021-20203 bsc#1181639)
• Fix buffer overflow in the XGMAC device (CVE-2020-15863 bsc#1174386)
• Fix DoS in packet processing of various emulated NICs (CVE-2020-16092 bsc#1174641)
• Fix OOB access while processing USB packets (CVE-2020-14364 bsc#1175441)
• Fix package scripts to not use hard coded paths for temporary working directories and log files (bsc#1182425)
• Fix potential privilege escalation in virtfs (CVE-2021-20181 bsc#1182137)
• Fix OOB access possibility in ES1370 audio device emulation (CVE-2020-13361 bsc#1172384)
• Fix OOB access in ROM loading (CVE-2020-13765 bsc#1172478)

Ziming Zhang and VictorV discovered that the QEMU SLiRP networking implementation incorrectly handled replying to certain ICMP echo requests. An attacker inside a guest could possibly use this issue to leak host memory to obtain sensitive information. This issue only affected Ubuntu 18.04 LTS. (CVE-2020-10756)

Eric Blake and Xueqiang Wei discovered that the QEMU NDB implementation incorrectly handled certain requests. A remote attacker could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-10761)

Ziming Zhang discovered that the QEMU SM501 graphics driver incorrectly handled certain operations. An attacker inside a guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-12829)

It was discovered that the QEMU SD memory card implementation incorrectly handled certain memory operations. An attacker inside a guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-13253)

Ren Ding and Hanqing Zhao discovered that the QEMU ES1370 audio driver incorrectly handled certain invalid frame counts. An attacker inside a guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-13361)

Ren Ding and Hanqing Zhao discovered that the QEMU MegaRAID SAS SCSI driver incorrectly handled certain memory operations. An attacker inside a guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-13362)

Alexander Bulekov discovered that QEMU MegaRAID SAS SCSI driver incorrectly handled certain memory space operations. An attacker inside a guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-13659)

Ren Ding, Hanqing Zhao, Alexander Bulekov, and Anatoly Trosinenko discovered that the QEMU incorrectly handled certain msi-x mmio operations. An attacker inside a guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-13754)

It was discovered that QEMU incorrectly handled certain memory copy operations when loading ROM contents. If a user were tricked into running an untrusted kernel image, a remote attacker could possibly use this issue to run arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2020-13765)

Ren Ding, Hanqing Zhao, and Yi Ren discovered that the QEMU ATI video driver incorrectly handled certain index values. An attacker inside a guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-13800)

Ziming Zhang discovered that the QEMU OSS audio driver incorrectly handled certain operations. An attacker inside a guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-14415)

Ziming Zhang discovered that the QEMU XGMAC Ethernet controller incorrectly handled packet transmission. An attacker inside a guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-15863)

Ziming Zhang discovered that the QEMU e1000e Ethernet controller incorrectly handled packet processing. An attacker inside a guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-16092)