CVE-2020-13904

Publication date 7 June 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

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.

Status

Package Ubuntu Release Status
ffmpeg 20.04 LTS focal
Fixed 7:4.2.4-1ubuntu0.1
19.10 eoan Ignored end of life
18.04 LTS bionic
Fixed 7:3.4.8-0ubuntu0.2
16.04 LTS xenial
Fixed 7:2.8.17-0ubuntu0.1
14.04 LTS trusty Not in release

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
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