vulnerability

FFmpeg: CVE-2020-20902: Out-of-bounds Read

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
Sep 20, 2021
Added
Nov 26, 2021
Modified
Aug 11, 2025

Description

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.

Solutions

ffmpeg-upgrade-2_8_16ffmpeg-upgrade-2_8_19ffmpeg-upgrade-3_2_15ffmpeg-upgrade-3_2_17ffmpeg-upgrade-3_4_10ffmpeg-upgrade-3_4_7ffmpeg-upgrade-4_0_5ffmpeg-upgrade-4_1_5ffmpeg-upgrade-4_1_9ffmpeg-upgrade-4_2_2ffmpeg-upgrade-4_3
Title
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