Bug 2563385

Summary: CVE-2026-118753 freeimage: freeimage: Arbitrary code execution via unclipped GIF frame dimensions [fedora-rawhide]
Product: [Fedora] Fedora Reporter: Marian Rehak <mrehak>
Component: freeimageAssignee: Bruno Wolff III <bruno>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: bruno, epel-packagers-sig, hobbes1069, i
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["2d920ab6-46d3-4513-be94-d9b5f6b89c14"]}
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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:    
Bug Blocks: 2563210    

Description Marian Rehak 2026-10-29 14:12:39 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.

FreeImage (danoli3 fork) before 3.19.25 contains a heap buffer overflow vulnerability in PluginGIF.cpp that allows attackers to write past the canvas allocation via unclipped GIF frame rectangles. Attackers can craft a GIF whose frame left plus width exceeds the logical screen width, causing GifPlaybackCompositeFrame() and GifPlaybackFillRect() to corrupt heap memory when loaded with GIF_PLAYBACK.