Bug 2569556 (CVE-2026-125181)

Summary: CVE-2026-125181 ffmpeg: ffmpeg: Memory corruption via crafted FLIC file
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: bbrownin
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FFmpeg. An out-of-bounds write vulnerability allows heap memory corruption, which can lead to an application crash and denial of service (DoS) or potentially arbitrary code execution. An attacker could exploit this by enticing a user or automated service to process a specially crafted FLIC video file on a big-endian system, causing data to be written beyond the allocated buffer boundaries.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-10 13:03:20 UTC
FFmpeg through 9.0.2 contains an out-of-bounds write vulnerability in flic_decode_frame_15_16BPP() in libavcodec/flicvideo.c that allows attackers to corrupt heap memory on big-endian builds. Attackers can supply a crafted 15/16 bpp FLIC/FLX file with an FLI_BRUN chunk whose non-terminating byte-swap loop writes packet-derived data past the frame buffer, crashing the process.