Description
FFmpeg before 8.1.3 contains a protection mechanism failure in the HLS demuxer that allows attackers to bypass protocol and allowed_extensions restrictions when opening child playlists. Attackers can supply a crafted master playlist whose child playlists use disallowed protocols or non-multimedia local files, making parse_playlist() open resources the HLS security policy should block.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
FFmpeg FFmpeg
Default version status: unaffected
0 to < 8.1.3affected
pkg:github/ffmpeg/ffmpegReferences
- https://github.com/FFmpeg/FFmpeg/commit/23602df9cd1b485c45ba6f533d3b85569de3f323 ↗
- https://github.com/FFmpeg/FFmpeg/commit/01044d04536e ↗
- https://github.com/FFmpeg/FFmpeg/commit/191715f0232c ↗
- https://github.com/FFmpeg/FFmpeg/blob/n8.1.2/libavformat/hls.c#L834 ↗
- https://github.com/FFmpeg/FFmpeg ↗
- https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-hls-demuxer-security-check-bypass-via-parse-playlist ↗