CVE-2022-26353

Publication date 16 March 2022

Last updated 18 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. Affected QEMU version: 6.2.0.

Status

Package Ubuntu Release Status
qemu 25.10 questing
Fixed 1:6.2+dfsg-2ubuntu8
25.04 plucky
Fixed 1:6.2+dfsg-2ubuntu8
24.10 oracular
Fixed 1:6.2+dfsg-2ubuntu8
24.04 LTS noble
Fixed 1:6.2+dfsg-2ubuntu8
23.10 mantic
Fixed 1:6.2+dfsg-2ubuntu8
23.04 lunar
Fixed 1:6.2+dfsg-2ubuntu8
22.10 kinetic
Fixed 1:6.2+dfsg-2ubuntu8
22.04 LTS jammy
Fixed 1:6.2+dfsg-2ubuntu6.2
21.10 impish
Fixed 1:6.0+dfsg-2expubuntu1.3
20.04 LTS focal
Fixed 1:4.2-3ubuntu6.23
18.04 LTS bionic
Fixed 1:2.11+dfsg-1ubuntu7.40
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
qemu

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references