UBUNTU-CVE-2020-20902

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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
2025-09-08T16:46:16Z
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 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "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"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / qtwebengine-opensource-src

Package

Name
qtwebengine-opensource-src
Purl
pkg:deb/ubuntu/qtwebengine-opensource-src@5.9.5+dfsg-0ubuntu2?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.9.1+dfsg-4
5.9.1+dfsg-4ubuntu1
5.9.2+dfsg-2ubuntu1
5.9.3+dfsg-0ubuntu1
5.9.4+dfsg-0ubuntu1
5.9.5+dfsg-0ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "libqt5webengine-data"
        },
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "libqt5webengine5"
        },
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "libqt5webenginecore5"
        },
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "libqt5webenginewidgets5"
        },
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "qml-module-qtwebengine"
        },
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "qtwebengine5-dev"
        },
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "qtwebengine5-dev-tools"
        },
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "qtwebengine5-doc-html"
        },
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "qtwebengine5-examples"
        },
        {
            "binary_version": "5.9.5+dfsg-0ubuntu2",
            "binary_name": "qtwebengine5-private-dev"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / qtwebengine-opensource-src

Package

Name
qtwebengine-opensource-src
Purl
pkg:deb/ubuntu/qtwebengine-opensource-src@5.12.8+dfsg-0ubuntu1.1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.12.4+dfsg-1ubuntu1
5.12.4+dfsg-1ubuntu3
5.12.5+dfsg-3ubuntu1
5.12.5+dfsg-6ubuntu2
5.12.5+dfsg-7
5.12.5+dfsg-7build1
5.12.8+dfsg-0ubuntu1
5.12.8+dfsg-0ubuntu1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "libqt5webengine-data"
        },
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "libqt5webengine5"
        },
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "libqt5webenginecore5"
        },
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "libqt5webenginewidgets5"
        },
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "qml-module-qtwebengine"
        },
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "qtwebengine5-dev"
        },
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "qtwebengine5-dev-tools"
        },
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "qtwebengine5-doc-html"
        },
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "qtwebengine5-examples"
        },
        {
            "binary_version": "5.12.8+dfsg-0ubuntu1.1",
            "binary_name": "qtwebengine5-private-dev"
        }
    ]
}

Ubuntu:22.04:LTS / qtwebengine-opensource-src

Package

Name
qtwebengine-opensource-src
Purl
pkg:deb/ubuntu/qtwebengine-opensource-src@5.15.9+dfsg-1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.15.6+dfsg-1
5.15.6+dfsg-2
5.15.7+dfsg-2
5.15.8+dfsg-1
5.15.8+dfsg-1build1
5.15.8+dfsg-1build2
5.15.8+dfsg-2
5.15.9+dfsg-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "libqt5pdf5"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "libqt5pdfwidgets5"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "libqt5webengine-data"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "libqt5webengine5"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "libqt5webenginecore5"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "libqt5webenginewidgets5"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qml-module-qtquick-pdf"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qml-module-qtwebengine"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qt5-image-formats-plugin-pdf"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qtpdf5-dev"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qtpdf5-doc-html"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qtpdf5-examples"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qtwebengine5-dev"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qtwebengine5-dev-tools"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qtwebengine5-doc-html"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qtwebengine5-examples"
        },
        {
            "binary_version": "5.15.9+dfsg-1",
            "binary_name": "qtwebengine5-private-dev"
        }
    ]
}

Ubuntu:24.04:LTS / qtwebengine-opensource-src

Package

Name
qtwebengine-opensource-src
Purl
pkg:deb/ubuntu/qtwebengine-opensource-src@5.15.16+dfsg-3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.15.15+dfsg-2
5.15.15+dfsg-2build2
5.15.15+dfsg-2ubuntu1
5.15.16+dfsg-1
5.15.16+dfsg-1ubuntu2
5.15.16+dfsg-1ubuntu4
5.15.16+dfsg-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "libqt5pdf5"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "libqt5pdfwidgets5"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "libqt5webengine-data"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "libqt5webengine5"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "libqt5webenginecore5"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "libqt5webenginewidgets5"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qml-module-qtquick-pdf"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qml-module-qtwebengine"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qt5-image-formats-plugin-pdf"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qtpdf5-dev"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qtpdf5-doc-html"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qtpdf5-examples"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qtwebengine5-dev"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qtwebengine5-dev-tools"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qtwebengine5-doc-html"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qtwebengine5-examples"
        },
        {
            "binary_version": "5.15.16+dfsg-3",
            "binary_name": "qtwebengine5-private-dev"
        }
    ]
}

Ubuntu:25.04 / qtwebengine-opensource-src

Package

Name
qtwebengine-opensource-src
Purl
pkg:deb/ubuntu/qtwebengine-opensource-src@5.15.18+dfsg-2?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.15.17+dfsg-4
5.15.17+dfsg-5
5.15.17+dfsg2-1
5.15.17+dfsg2-2
5.15.17+dfsg2-3
5.15.18+dfsg-1
5.15.18+dfsg-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "libqt5pdf5"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "libqt5pdfwidgets5"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "libqt5webengine-data"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "libqt5webengine5"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "libqt5webenginecore5"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "libqt5webenginewidgets5"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qml-module-qtquick-pdf"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qml-module-qtwebengine"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qt5-image-formats-plugin-pdf"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qtpdf5-dev"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qtpdf5-doc-html"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qtpdf5-examples"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qtwebengine5-dev"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qtwebengine5-dev-tools"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qtwebengine5-doc-html"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qtwebengine5-examples"
        },
        {
            "binary_version": "5.15.18+dfsg-2",
            "binary_name": "qtwebengine5-private-dev"
        }
    ]
}