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

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

References

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