UBUNTU-CVE-2020-20902

Source
https://ubuntu.com/security/CVE-2020-20902
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-20902.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-20902
Upstream
Downstream
Related
Published
2021-09-20T16:15:00Z
Modified
2026-03-07T01:27:18.555468Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

A CWE-125: Out-of-bounds read vulnerability exists in longtermfilter 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.

References

Affected packages

Ubuntu:Pro:16.04:LTS / ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/ubuntu/ffmpeg@7:2.8.17-0ubuntu0.1+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7:2.8.17-0ubuntu0.1+esm1

Affected versions

7:2.*
7:2.7.2-1build1
7:2.8.1-1ubuntu1
7:2.8.2-1ubuntu1
7:2.8.3-1
7:2.8.4-1
7:2.8.4-1ubuntu1
7:2.8.4-1ubuntu2
7:2.8.4-1ubuntu3
7:2.8.4-1ubuntu4
7:2.8.6-1ubuntu1
7:2.8.6-1ubuntu2
7:2.8.8-0ubuntu0.16.04.1
7:2.8.10-0ubuntu0.16.04.1
7:2.8.11-0ubuntu0.16.04.1
7:2.8.14-0ubuntu0.16.04.1
7:2.8.15-0ubuntu0.16.04.1
7:2.8.15-0ubuntu0.16.04.1+esm1
7:2.8.17-0ubuntu0.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "ffmpeg"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libav-tools"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavcodec-dev"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavcodec-extra"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavcodec-ffmpeg-extra56"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavcodec-ffmpeg56"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavdevice-dev"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavdevice-ffmpeg56"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavfilter-dev"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavfilter-ffmpeg5"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavformat-dev"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavformat-ffmpeg56"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavresample-dev"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavresample-ffmpeg2"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavutil-dev"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libavutil-ffmpeg54"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libpostproc-dev"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libpostproc-ffmpeg53"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libswresample-dev"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libswresample-ffmpeg1"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libswscale-dev"
        },
        {
            "binary_version": "7:2.8.17-0ubuntu0.1+esm1",
            "binary_name": "libswscale-ffmpeg3"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-20902.json"