Bug 2536101

Summary: CVE-2026-38344 ffmpeg: FFmpeg: Denial of Service via crafted video file [fedora-all]
Product: [Fedora] Fedora Reporter: Avinash Hanwate <ahanwate>
Component: ffmpegAssignee: Multimedia SIG <multimedia-sig>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: asn, development.group, dominik, multimedia-sig, ngompa13
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["cc346a75-1ccc-47f8-b2d9-8f3f3c99c278"]}
Fixed In Version: ffmpeg-8.1.1-1.fc44,ffmpeg-8.1.1-1.fc45,ffmpeg-7.1.4-1.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-09-29 09:40:33 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2525330    

Description Avinash Hanwate 2026-09-17 15:19:39 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 NULL pointer dereference in the get_min_buffer_size function (/libswscale/slice.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted video file.
Comment 1 Dominik 'Rathann' Mierzejewski 2026-09-29 09:40:33 UTC 
Fixed in 8.1 and 9.0 before release: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/dc9bf66796b7c1f4329f127736ddf3258e5ba206
Backported to 7.1.4: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/af29ae54a4c9b2d3b3ccb4963f86698c69f28091 .