CVE-2020-13754

hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.

hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.

QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed.

Security Fix(es):

hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.(CVE-2020-13754)

In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation. It occurs in the ati_cursor_define() routine while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.(CVE-2019-20808)

A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer via the sdhci_sdma_transfer_multi_blocks() routine in hw/sd/sdhci.c. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the QEMU process on the host.(CVE-2020-17380)

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):

• QEMU: msix: OOB access during mmio operations may lead to DoS (CVE-2020-13754)

• hivex: Buffer overflow when provided invalid node key length (CVE-2021-3504)

• QEMU: net: an assert failure via eth_get_gso_type (CVE-2020-27617)

• QEMU: net: infinite loop in loopback mode may lead to stack overflow (CVE-2021-3416)

• qemu: out-of-bound heap buffer access via an interrupt ID field (CVE-2021-20221)

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.

Bug Fix(es):

• cannot restart default network and firewalld: iptables: No chain/target/match by that name. (BZ#1958301)

• Rocky Linux8.4 Nightly[0322] - KVM guest fails to find zipl boot menu index (qemu-kvm) (BZ#1975679)

hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.

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):

• QEMU: msix: OOB access during mmio operations may lead to DoS (CVE-2020-13754)

• hivex: Buffer overflow when provided invalid node key length (CVE-2021-3504)

• QEMU: net: an assert failure via eth_get_gso_type (CVE-2020-27617)

• QEMU: net: infinite loop in loopback mode may lead to stack overflow (CVE-2021-3416)

• qemu: out-of-bound heap buffer access via an interrupt ID field (CVE-2021-20221)

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.

Bug Fix(es):

• cannot restart default network and firewalld: iptables: No chain/target/match by that name. (BZ#1958301)

• RHEL8.4 Nightly[0322] - KVM guest fails to find zipl boot menu index (qemu-kvm) (BZ#1975679)

This update for qemu fixes the following issues:

• Fix OOB access during mmio operations (CVE-2020-13754, bsc#1172382)
• Fix sPAPR emulator leaks the host hardware identity (CVE-2019-8934, bsc#1126455)
• Fix out-of-bounds read information disclosure in icmp6_send_echoreply (CVE-2020-10756, bsc#1172380)
• Fix out-of-bound heap buffer access via an interrupt ID field (CVE-2021-20221, bsc#1181933)
• For the record, these issues are fixed in this package already. Most are alternate references to previously mentioned issues: (CVE-2019-15890, bsc#1149813, CVE-2020-8608, bsc#1163019, CVE-2020-14364, bsc#1175534, CVE-2020-25723, bsc#1178935, CVE-2020-29130, bsc#1179477, CVE-2021-20257, bsc#1182846, CVE-2021-3419, bsc#1182975, bsc#1031692, bsc#1094725)

This update for qemu fixes the following issues:

• Fix OOB access during mmio operations (CVE-2020-13754, bsc#1172382)
• Fix out-of-bounds read information disclosure in icmp6_send_echoreply (CVE-2020-10756, bsc#1172380)
• Fix out-of-bound heap buffer access via an interrupt ID field (CVE-2021-20221, bsc#1181933)
• For the record, these issues are fixed in this package already. Most are alternate references to previously mentioned issues: (CVE-2019-15890, bsc#1149813, CVE-2020-8608, bsc#1163019, CVE-2020-14364, bsc#1175534, CVE-2020-25707, bsc#1178683, CVE-2020-25723, bsc#1178935, CVE-2020-29130, bsc#1179477, CVE-2021-20257, bsc#1182846, CVE-2021-3419, bsc#1182975, bsc#1094725)

This update for qemu fixes the following issues:

• Fix OOB access during mmio operations (CVE-2020-13754, bsc#1172382)
• Fix out-of-bounds read information disclosure in icmp6_send_echoreply (CVE-2020-10756, bsc#1172380)
• For the record, these issues are fixed in this package already. Most are alternate references to previously mentioned issues: (CVE-2019-15890, bsc#1149813, CVE-2020-8608, bsc#1163019, CVE-2020-14364, bsc#1175534, CVE-2020-25707, bsc#1178683, CVE-2020-25723, bsc#1178935, CVE-2020-29130, bsc#1179477, CVE-2020-29129, bsc#1179484, CVE-2021-20257, bsc#1182846, CVE-2021-3419, bsc#1182975)

This update for qemu fixes the following issues:

• Fix OOB access during mmio operations (CVE-2020-13754, bsc#1172382)
• Fix out-of-bounds read information disclosure in icmp6_send_echoreply (CVE-2020-10756, bsc#1172380)
• For the record, these issues are fixed in this package already. Most are alternate references to previously mentioned issues: (CVE-2019-15890, bsc#1149813, CVE-2020-8608, bsc#1163019, CVE-2020-14364, bsc#1175534, CVE-2020-25707, bsc#1178683, CVE-2020-25723, bsc#1178935, CVE-2020-29130, bsc#1179477, CVE-2020-29129, bsc#1179484, CVE-2021-20257, bsc#1182846, CVE-2021-3419, bsc#1182975)

This update for qemu fixes the following issues:

• bsc#1172033 (CVE-2020-13253)

• bsc#1180207 (CVE-2020-14394)

• bsc#1172382 (CVE-2020-13754)

• bsc#1198038 (CVE-2022-0216)

• bsc#1193880 (CVE-2021-3929)

• bsc#1197653 (CVE-2022-1050)

• bsc#1205808 (CVE-2022-4144), bsc#1198712 (CVE-2022-26354)

• bsc#1175144 (CVE-2020-17380, CVE-2020-25085, CVE-2021-3409), bsc#1185000 (CVE-2021-3507), bsc#1201367, CVE-2022-35414

• About bsc#1175144, see also bsc#1182282 (CVE-2021-3409)

• bsc#1198035, CVE-2021-4206

This update for qemu fixes the following issues:

• CVE-2022-26354: Fixed a memory leak due to a missing virtqueue detach on error. (bsc#1198712)
• CVE-2021-3929: Fixed an use-after-free in nvme DMA reentrancy issue. (bsc#1193880)
• CVE-2023-0330: Fixed a stack overflow due to a DMA reentrancy issue. (bsc#1207205)
• CVE-2020-13754: Fixed a DoS due to an OOB access during mmio operations. (bsc#1172382)
• CVE-2023-3354: Fixed a remote unauthenticated DoS due to an improper I/O watch removal in VNC TLS handshake. (bsc#1212850)
• CVE-2023-3180: Fixed a heap buffer overflow in virtio_crypto_sym_op_helper(). (bsc#1213925)
• CVE-2021-3638: Fixed an out-of-bounds write due to an inconsistent check in ati_2d_blt(). (bsc#1188609)
• CVE-2021-3750: Fixed an use-after-free in DMA reentrancy issue. (bsc#1190011)
• CVE-2023-2861: Fixed improper access control on special files in 9pfs (bsc#1212968).
• CVE-2022-1050: Fixed use-after-free issue in pvrdma_exec_cmd() (bsc#1197653).

The following non-security bug was fixed:

• Prepare for binutils update to 2.41 update (bsc#1215311).

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)

USN-4467-1 fixed several vulnerabilities in QEMU. This update provides the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

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)

Ziming Zhang, Xiao Wei, Gonglei Arei and Yanyu Zhang discovered that QEMU incorrectly handled certain USB packets. An attacker could possibly use this to expose sensitive information or execute arbitrary code. (CVE-2020-14364)