Vulnerability Details CVE-2020-13904
FFmpeg 2.8 and 4.2.3 has a use-after-free via a crafted EXTINF duration in an m3u8 file because parse_playlist in libavformat/hls.c frees a pointer, and later that pointer is accessed in av_probe_input_format3 in libavformat/format.c.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 63.5%
CVSS Severity
CVSS v3 Score 5.5
CVSS v2 Score 4.3
References
- https://github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2
- https://lists.debian.org/debian-lts-announce/2020/07/msg00022.html
- https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40chinaffmpeg.org/
- https://security.gentoo.org/glsa/202007-58
- https://trac.ffmpeg.org/ticket/8673
- https://usn.ubuntu.com/4431-1/
- https://www.debian.org/security/2020/dsa-4722
- https://github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2
- https://lists.debian.org/debian-lts-announce/2020/07/msg00022.html
- https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40chinaffmpeg.org/
- https://security.gentoo.org/glsa/202007-58
- https://trac.ffmpeg.org/ticket/8673
- https://usn.ubuntu.com/4431-1/
- https://www.debian.org/security/2020/dsa-4722
Products affected by CVE-2020-13904
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cpe:2.3:a:ffmpeg:ffmpeg:2.8
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cpe:2.3:a:ffmpeg:ffmpeg:4.2.3
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cpe:2.3:o:canonical:ubuntu_linux:16.04
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cpe:2.3:o:canonical:ubuntu_linux:18.04
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cpe:2.3:o:canonical:ubuntu_linux:20.04
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:debian:debian_linux:9.0