CVE-2024-3567

Publication date 10 April 2024

Last updated 15 September 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A flaw was found in QEMU. An assertion failure was present in the update_sctp_checksum() function in hw/net/net_tx_pkt.c when trying to calculate the checksum of a short-sized fragmented packet. This flaw allows a malicious guest to crash QEMU and cause a denial of service condition.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	25.04 plucky	Fixed 1:9.0.2+ds-4ubuntu2
	24.10 oracular	Fixed 1:9.0.2+ds-4ubuntu2
	24.04 LTS noble	Fixed 1:8.2.2+ds-0ubuntu1.10
	23.10 mantic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Not affected
	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

per Debian, introduced in 8.1.0-rc0 with: https://gitlab.com/qemu-project/qemu/-/commit/f199b13bc113c46eaddcf9f375d13f1e400b4e35

Patch details

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

Package	Patch details
qemu	Upstream: 1cfe459

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-7744-1
QEMU vulnerabilities
11 September 2025