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CVE-2020-20902

Published: 20 September 2021

A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function in g729postfilter.c in FFmpeg 4.2.1 during computation of the denominator of pseudo-normalized correlation R'(0), that could result in disclosure of information.

Priority

Low

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
ffmpeg
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(7:3.4.11-0ubuntu0.1+esm2)
focal Not vulnerable
(7:4.2.2-1ubuntu1)
hirsute Not vulnerable
(4.3)
impish Not vulnerable
(7:4.4-6ubuntu5)
jammy Not vulnerable
(7:4.4.1-3ubuntu2)
kinetic Not vulnerable
(7:4.4.1-3ubuntu2)
lunar Not vulnerable
(7:4.4.1-3ubuntu2)
mantic Not vulnerable
(7:4.4.1-3ubuntu2)
noble Not vulnerable
(7:4.4.1-3ubuntu2)
trusty Does not exist

upstream
Released (4.2.2)
xenial
Released (7:2.8.17-0ubuntu0.1+esm1)
Available with Ubuntu Pro
Patches:
upstream: http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=5f0acc5064ed501cb40d4aaccae2b3ce5c4552fd
upstream: http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=2c78a76cb0443f8a12a5eadc3b58373aa2f4ab22
qtwebengine-opensource-src
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
mantic Ignored
(end of life, was needs-triage)
noble Needs triage

trusty Does not exist

upstream Needs triage

xenial Ignored
(end of standard support)
vice
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

hirsute Ignored
(end of life)
impish Ignored
(end of life)
jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
mantic Ignored
(end of life, was needs-triage)
noble Needs triage

trusty Does not exist

upstream Needs triage

xenial Needs triage

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N