CVE-2020-35965

Published: 4 January 2021

decode_frame in libavcodec/exr.c in FFmpeg 4.3.1 has an out-of-bounds write because of errors in calculations of when to perform memset zero operations.

Priority

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package	Release	Status
ffmpeg Launchpad, Ubuntu, Debian	bionic	Released (7:3.4.11-0ubuntu0.1)
	focal	Released (7:4.2.7-0ubuntu0.1)
	groovy	Ignored (reached end-of-life)
	hirsute	Released (7:4.3.2-0+deb11u1ubuntu1)
	impish	Not vulnerable (7:4.4-6ubuntu5)
	jammy	Not vulnerable (7:4.4.1-3ubuntu2)
	precise	Does not exist
	trusty	Does not exist
	upstream	Released (4.4)
	xenial	Released (7:2.8.17-0ubuntu0.1+esm4)
	Patches: upstream: https://github.com/FFmpeg/FFmpeg/commit/3e5959b3457f7f1856d997261e6ac672bba49e8b upstream: https://github.com/FFmpeg/FFmpeg/commit/b0a8b40294ea212c1938348ff112ef1b9bf16bb3

Severity score breakdown

Parameter	Value
Base score	7.5
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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