CVE-2021-3611

Publication date 11 May 2022

Last updated 25 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

Description

A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0.

Read the notes from the security team

Status

Package Ubuntu Release Status
qemu 24.04 LTS noble
Fixed 1:7.0+dfsg-7ubuntu1
23.10 mantic
Fixed 1:7.0+dfsg-7ubuntu1
23.04 lunar
Fixed 1:7.0+dfsg-7ubuntu1
22.10 kinetic
Fixed 1:7.0+dfsg-7ubuntu1
22.04 LTS jammy
Fixed 1:6.2+dfsg-2ubuntu6.16
21.10 impish Ignored end of life
21.04 hirsute Ignored end of life
20.10 groovy Ignored end of life
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes

mdeslaur

introduced in 5.0.0-rc0 by: https://git.qemu.org/?p=qemu.git;a=commit;h=a9d8ba2be58e067bdfbff830eb9ff438d8db7f10 Part of the DMA reentrancy issues. Fixing this requires backporting the 22 DMA changes listed below.

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 6.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references