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Ubuntu 22.04 LTS USN-6567-2 Moderate: QEMU Regression Fix

ubuntu
Calendar Grey June 6, 2024
Dist Ubuntu Esm H88
Urgent security update for Ubuntu users regarding QEMU vulnerabilities. Please apply the latest patches to maintain system stability and avoid disruptions
USN-6567-1 introduced a regression in QEMU.

Summary

USN-6567-1 introduced a regression in QEMU.

Software Description:

- qemu: Machine emulator and virtualizer

Details:

USN-6567-1 fixed vulnerabilities QEMU. The fix for CVE-2023-2861 was too

restrictive and introduced a behaviour change leading to a regression in

certain environments. This update fixes the problem.

Original advisory details:

Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the

USB xHCI controller device. A privileged guest attacker could possibly use

this issue to cause QEMU to crash, leading to a denial of service. This

issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2020-14394)

It was discovered that QEMU incorrectly handled the TCG Accelerator. A

local attacker could use this issue to cause QEMU to crash, leading to a

denial of service, or possibly execute arbitrary code and esclate

privileges. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-24165)

It was discovered that QEMU in...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory moderate ubuntu regression qemu

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
   qemu-system                     1:6.2+dfsg-2ubuntu6.21
   qemu-system-arm                 1:6.2+dfsg-2ubuntu6.21
   qemu-system-mips                1:6.2+dfsg-2ubuntu6.21
   qemu-system-misc                1:6.2+dfsg-2ubuntu6.21
   qemu-system-ppc                 1:6.2+dfsg-2ubuntu6.21
   qemu-system-s390x               1:6.2+dfsg-2ubuntu6.21
   qemu-system-sparc               1:6.2+dfsg-2ubuntu6.21
   qemu-system-x86                 1:6.2+dfsg-2ubuntu6.21
   qemu-system-x86-microvm         1:6.2+dfsg-2ubuntu6.21
   qemu-system-x86-xen             1:6.2+dfsg-2ubuntu6.21

Ubuntu 20.04 LTS
   qemu-system                     1:4.2-3ubuntu6.29
   qemu-system-arm                 1:4.2-3ubuntu6.29
   qemu-system-mips                1:4.2-3ubuntu6.29
   qemu-system-misc                1:4.2-3ubuntu6.29
   qemu-system-ppc                 1:4.2-3ubuntu6.29
   qemu-system-s390x               1:4.2-3ubuntu6.29
   qemu-system-sparc               1:4.2-3ubuntu6.29
   qemu-system-x86                 1:4.2-3ubuntu6.29
   qemu-system-x86-microvm         1:4.2-3ubuntu6.29
   qemu-system-x86-xen             1:4.2-3ubuntu6.29

After a standard system update you need to restart all QEMU virtual
machines to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6567-2

https://ubuntu.com/security/notices/USN-6567-1

https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/2065579

Ubuntu Security Notice USN-6567-2

Topics%20covered

Topics Covered

security advisory moderate ubuntu regression qemu

Package Information

https://launchpad.net/ubuntu/+source/qemu/1:6.2+dfsg-2ubuntu6.21
https://launchpad.net/ubuntu/+source/qemu/1:4.2-3ubuntu6.29

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