CVE-2020-20902 — Out-of-bounds Read in Ffmpeg

CWE-125 — Out-of-bounds Read6 documents5 sources
Severity
6.5MEDIUMNVD
EPSS
0.4%
top 39.74%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
FfmpegDebian Ffmpeg
Timeline
PublishedSep 20
Latest updateJun 13

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/ffmpeg< ffmpeg 7:4.2.2-1 (bookworm)
▶Debianffmpeg/ffmpeg< 7:4.2.2-1+3
▶Ubuntuffmpeg/ffmpeg< 7:2.8.17-0ubuntu0.1+esm4
▶NVDffmpeg/ffmpeg4.2.1

Patches

Patch: trac.ffmpeg.org ↗Patch: trac.ffmpeg.org ↗

🔴Vulnerability Details

3
OSV
ffmpeg vulnerabilities↗2022-06-13
▶
GHSA
GHSA-fv2v-8v2v-g9q3: A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function in g729postfilter↗2022-05-24
▶
OSV
CVE-2020-20902: A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function in g729postfilter↗2021-09-20
▶

📋Vendor Advisories

2
Ubuntu
FFmpeg vulnerabilities↗2022-06-13
▶
Debian
CVE-2020-20902: ffmpeg - A CWE-125: Out-of-bounds read vulnerability exists in long_term_filter function ...↗2020
▶