CVE-2024-8354

Publication date 19 September 2024

Last updated 9 June 2026

Ubuntu priority

Cvss 3 Severity Score

Description

A flaw was found in QEMU. An assertion failure was present in the usb_ep_get() function in hw/net/core.c when trying to get the USB endpoint from a USB device. This flaw may allow a malicious unprivileged guest user to crash the QEMU process on the host and cause a denial of service condition.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
qemu	26.04 LTS resolute	Not affected
	25.10 questing	Fixed 1:10.1.0+ds-5ubuntu2.4
	25.04 plucky	Ignored end of life, was needed
	24.10 oracular	Ignored end of life, was deferred [2025-05-26]
	24.04 LTS noble	Fixed 1:8.2.2+ds-0ubuntu1.13
	22.04 LTS jammy	Fixed 1:6.2+dfsg-2ubuntu6.28
	20.04 LTS focal	Fixed 1:4.2-3ubuntu6.30+esm1
	18.04 LTS bionic	Fixed 1:2.11+dfsg-1ubuntu7.42+esm5
	16.04 LTS xenial	Fixed 1:2.5+dfsg-5ubuntu10.51+esm4
	14.04 LTS trusty	Fixed 2.0.0+dfsg-2ubuntu1.47+esm6

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Notes

mdeslaur

While this was originally marked as fixed in USN-7744-1, the 3c3c233677 commit was actually for a similar bug in hcd-ohci. This CVE is for the bug in hcd-uhci. A proposed fix is: https://patchew.org/QEMU/20250915132910.1252212-1-peter.maydell@linaro.org/

Patch details

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

Package	Patch details
qemu	Upstream: 3c3c233 Upstream: d0af3cd

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

USN-8073-1
QEMU vulnerabilities
4 March 2026

USN-8412-1
QEMU vulnerabilities
9 June 2026