Bug 2525511 - CVE-2026-38345 ffmpeg: FFmpeg: Denial of Service via division-by-zero vulnerability in `ff_sws_init_single_context` function. [fedora-43]
Summary: CVE-2026-38345 ffmpeg: FFmpeg: Denial of Service via division-by-zero vulnera...
Keywords:
Status: ASSIGNED
Alias: None
Product: Fedora
Classification: Fedora
Component: ffmpeg
Version: 43
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Multimedia SIG
QA Contact:
URL:
Whiteboard: {"flaws": ["d8f553fd-75de-4200-8ee4-5...
Depends On:
Blocks: CVE-2026-38345
TreeView+ depends on / blocked
 
Reported: 2026-08-28 09:11 UTC by Thibault Guittet
Modified: 2026-09-29 09:23 UTC (History)
5 users (show)

Fixed In Version: ffmpeg-8.1.1-1.fc44,ffmpeg-8.1.1-1.fc45
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Thibault Guittet 2026-08-28 09:11:43 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A Division-by-Zero vulnerability in the ff_sws_init_single_context function (/libswscale/utils.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via a crafted input.
Comment 1 Dominik 'Rathann' Mierzejewski 2026-09-29 09:23:59 UTC 
Fixed in 8.1.1: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/04fe98482a264117fa49a166c18227f3f93f921b

NOT fixed in 7.1.x
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