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CVE-2020-13904

Published: 7 June 2020

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.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
ffmpeg
Launchpad, Ubuntu, Debian
focal
Released (7:4.2.4-1ubuntu0.1)
bionic
Released (7:3.4.8-0ubuntu0.2)
eoan Ignored
(end of life)
trusty Does not exist

upstream
Released (4.3.1)
xenial
Released (7:2.8.17-0ubuntu0.1)

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H