Bug 2246964 (CVE-2023-46407)

Summary:	CVE-2023-46407 FFmpeg: out of bounds read
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
Target Milestone:	---
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Bug Depends On:	2246967, 2246965, 2246966, 2246968, 2246969
Bug Blocks:

Description Avinash Hanwate 2023-10-30 09:33:40 UTC

FFmpeg prior to commit bf814 was discovered to contain an out of bounds read via the dist->alphabet_size variable in the read_vlc_prefix() function.

https://github.com/FFmpeg/FFmpeg/commit/bf814387f42e9b0dea9d75c03db4723c88e7d962
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231013014959.536776-1-leo.izen@gmail.com/
https://patchwork.ffmpeg.org/project/ffmpeg/patch/20231015004924.597746-1-leo.izen@gmail.com/

Comment 1 Avinash Hanwate 2023-10-30 09:35:57 UTC

Created chromium tracking bugs for this issue:

Affects: epel-all [bug 2246966]


Created ffmpeg tracking bugs for this issue:

Affects: fedora-all [bug 2246965]


Created qt5-qtwebengine tracking bugs for this issue:

Affects: epel-all [bug 2246967]
Affects: fedora-all [bug 2246968]


Created qt6-qtwebengine tracking bugs for this issue:

Affects: fedora-all [bug 2246969]

Comment 2 Dominik 'Rathann' Mierzejewski 2024-01-31 17:50:32 UTC

This affects 6.1, where this code was added. 6.1.1 contains the fix.