The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2021:1762 advisory.

    * 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)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 7 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2021-1882:03 advisory.

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

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4725-1 advisory.

    It was discovered that QEMU incorrectly handled memory in iSCSI emulation. An attacker inside the guest     could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 16.04 LTS,     Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2020-11947)

    Alexander Bulekov discovered that QEMU incorrectly handled Intel e1000e emulation. An attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-15859)

    Alexander Bulekov discovered that QEMU incorrectly handled memory region cache. An attacker inside the     guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only     affected Ubuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2020-27821)

    Cheol-woo Myung discovered that QEMU incorrectly handled Intel e1000e emulation. An attacker inside the     guest could use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu     20.04 LTS, and Ubuntu 20.10. (CVE-2020-28916)

    Wenxiang Qian discovered that QEMU incorrectly handled ATAPI emulation. An attacker inside the guest could     use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2020-29443)

    It was discovered that QEMU incorrectly handled VirtFS directory sharing. An attacker inside the guest     could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2021-20181)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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)

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)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
184965	RockyLinux 8 : virt:rhel and virt-devel:rhel (RLSA-2021:1762)	Nessus	Rocky Linux Local Security Checks	2023/11/7	2025/9/24	medium
294446	MiracleLinux 7 : qemu-kvm-1.5.3-175.el7.4 (AXSA:2021-1882:03)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	low
146303	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : QEMU vulnerabilities (USN-4725-1)	Nessus	Ubuntu Local Security Checks	2021/2/8	2025/9/3	high
148761	SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1241-1)	Nessus	SuSE Local Security Checks	2021/4/19	2024/1/3	high

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