GHSA-56ch-98q5-gwgmLowCVSS 2.5
FFmpeg through 9.0.2 contains an out-of-bounds read vulnerability in the prores_ks encoder's...
🔗 CVE IDs covered (1)
📋 Description
FFmpeg through 9.0.2 contains an out-of-bounds read vulnerability in the prores_ks encoder's get_alpha_data() that reads before the blocks buffer for interlaced frames with odd heights. Attackers can supply video with alpha and odd height encoded to interlaced ProRes 4444, causing out-of-bounds memory to be encoded into the output alpha plane.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-125206
- https://github.com/FFmpeg/FFmpeg/commit/9edd06f8612c242b83bf9e3d14aa85180015a211
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24490
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/proresenc_kostya.c#L150
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-out-of-bounds-read-via-prores-ks-interlaced-alpha-encoding
- https://github.com/advisories/GHSA-56ch-98q5-gwgm