CVE-2020-20902

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Source
https://cve.org/CVERecord?id=CVE-2020-20902
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-20902.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-20902
Downstream
Related
Published
2021-09-20T16:15:09.463Z
Modified
2026-07-08T16:27:37.674367Z
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
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

Git / git.ffmpeg.org/ffmpeg.git

Affected ranges

Type
GIT
Repo
https://git.ffmpeg.org/ffmpeg.git
Events
Introduced
1529dfb73a5157dcb8762051ec4c8d8341762478
Last affected
1529dfb73a5157dcb8762051ec4c8d8341762478
Database specific 
{
    "source": "CPE_STRING",
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.2.1:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.2.1"
        },
        {
            "last_affected": "4.2.1"
        }
    ]
}

Affected versions

4.*
4.2.1
n4.*
n4.2.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-20902.json"

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
1529dfb73a5157dcb8762051ec4c8d8341762478
Last affected
1529dfb73a5157dcb8762051ec4c8d8341762478
Database specific 
{
    "source": "CPE_STRING",
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.2.1:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.2.1"
        },
        {
            "last_affected": "4.2.1"
        }
    ]
}

Affected versions

4.*
4.2.1
n4.*
n4.2.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-20902.json"