GHSA-pr5x-4ggj-w5wjHighCVSS 7.8
FFmpeg through 9.0.2 contains an integer overflow vulnerability in ff_prores_kostya_encode_init()...
🔗 CVE IDs covered (1)
📋 Description
FFmpeg through 9.0.2 contains an integer overflow vulnerability in ff_prores_kostya_encode_init() that miscalculates frame_size_upper_bound using 32-bit arithmetic for large frame dimensions. Attackers can supply a high-resolution video transcoded with the prores_ks encoder, causing encode_frame() to write slices past an undersized packet buffer and corrupt heap memory.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-125259
- https://github.com/FFmpeg/FFmpeg/commit/439b452f9fe916a9f7d8788ab6afee8fac846b0b
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25573
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/proresenc_kostya_common.c#L286
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-heap-buffer-overflow-via-prores-prores-ks-encoder
- https://github.com/advisories/GHSA-pr5x-4ggj-w5wj