886497 – (CVE-2022-3109) <media-video/ffmpeg-5.1: null pointer dereference

Bug 886497 (CVE-2022-3109) - <media-video/ffmpeg-5.1: null pointer dereference

Summary: <media-video/ffmpeg-5.1: null pointer dereference

Status:	CONFIRMED

Alias:	CVE-2022-3109

Product:	Gentoo Security
Classification:	Unclassified
Component:	Vulnerabilities (show other bugs)
Hardware:	All Linux

Importance:	Normal normal
Assignee:	Gentoo Security

URL:	https://bugzilla.redhat.com/show_bug....
Whiteboard:	A3 [upstream/ebuild]
Keywords:

Depends on:
Blocks:

Reported:	2022-12-17 21:30 UTC by John Helmert III
Modified:	2023-05-04 13:19 UTC (History)
CC List:	3 users (show)

See Also:
Package list:
Runtime testing required:	---

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Description John Helmert III archtester

2022-12-17 21:30:57 UTC

CVE-2022-3109 (https://github.com/FFmpeg/FFmpeg/commit/656cb0450aeb73b25d7d26980af342b37ac4c568):

An issue was discovered in the FFmpeg through 3.0. vp3_decode_frame in libavcodec/vp3.c lacks check of the return value of av_malloc() and will cause the null pointer dereference, impacting confidentiality and availability.

Bit weird to refer to 3.0 when the issue was fixed in 5.1. Not sure
how a crash could affect confidentiality, either. Doesn't seem to have
been backported.

Comment 1 Pacho Ramos gentoo-dev

2023-05-02 13:59:40 UTC

Ubuntu should have backported patches:
https://ubuntu.com/security/notices/USN-5958-1

But I cannot locate them... I guess they are "closed" behind that ESM stuff? :S