Home/CVE/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 libavf
CVE

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 libavf

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.

MEDIUM · CVSS 5.5 EPSS 0.00252
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
▤

Affected Products & Versions

3
ffmpegall versions
canonical ubuntu linuxall versions
debian linuxall versions
⚠

Public Exploits & PoCs

1
poctrac.ffmpeg.org · 8673trac.ffmpeg.org
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Jun 2020 · 07:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

4
suse-csafSUSE-SU-2021:2929-1
suse-csafopenSUSE-SU-2021:2322-1
suse-csafSUSE-SU-2021:2322-1
usnUSN-4431-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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%40chinaffmpeg.org/
https://security.gentoo.org/glsa/202007-58Third Party Advisory
https://usn.ubuntu.com/4431-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4722Third Party Advisory
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