CVE-2024-3447

Publication date 14 November 2024

Last updated 15 September 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	25.10 questing	Fixed 1:9.0.2+ds-4ubuntu2
	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	Fixed 1:6.2+dfsg-2ubuntu6.27
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	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	Upstream: 35a67d2

Severity score breakdown

Parameter	Value
Base score	6.0 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Changed
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-7744-1
QEMU vulnerabilities
11 September 2025