Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ffmpeg | Ffmpeg | 2.8 |
| Canonical | Ubuntu Linux | 16.04 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00022.htmlMailing ListThird Party Advisory
- https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40ch
- https://security.gentoo.org/glsa/202007-58Third Party Advisory
- https://trac.ffmpeg.org/ticket/8673ExploitIssue TrackingVendor Advisory
- https://usn.ubuntu.com/4431-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4722Third Party Advisory
- https://github.com/FFmpeg/FFmpeg/commit/6959358683c7533f586c07a766acc5fe9544d8b2PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00022.htmlMailing ListThird Party Advisory
- https://patchwork.ffmpeg.org/project/ffmpeg/patch/20200529033905.41926-1-lq%40ch
- https://security.gentoo.org/glsa/202007-58Third Party Advisory
- https://trac.ffmpeg.org/ticket/8673ExploitIssue TrackingVendor Advisory
- https://usn.ubuntu.com/4431-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4722Third Party Advisory
FAQ
What is CVE-2020-13904?
CVE-2020-13904 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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_inpu...
How severe is CVE-2020-13904?
CVE-2020-13904 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-13904?
Check the references section above for vendor advisories and patch information. Affected products include: Ffmpeg Ffmpeg, Canonical Ubuntu Linux, Debian Debian Linux.