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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

Medium

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