Bug 2565002

Summary: CVE-2026-120245 qt5-qtwebengine: ffmpeg: Information disclosure via crafted Sun Raster image [fedora-rawhide]
Product: [Fedora] Fedora Reporter: Marian Rehak <mrehak>
Component: qt5-qtwebengineAssignee: Jan Grulich <jgrulich>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: jgrulich, kde-sig, kevin
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["4387e27f-9d85-4018-80eb-8e16e8fb28eb"]}
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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: 2564503    

Description Marian Rehak 2026-11-02 10:30:36 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.

FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.