CVE-2020-21688

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Source
https://cve.org/CVERecord?id=CVE-2020-21688
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-21688.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-21688
Downstream
Related
Published
2021-08-10T21:15:07.723Z
Modified
2026-07-26T05:17:28.510263624Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A heap-use-after-free in the av_freep function in libavutil/mem.c of FFmpeg 4.2 allows attackers to execute arbitrary code.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "11.0"
                },
                {
                    "last_affected": "11.0"
                }
            ],
            "source": "CPE_STRING",
            "vendor_product": "debian:debian_linux",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
            ]
        }
    ]
}
References

Affected packages

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
517573a67088b5c7a25c18373434e3448892ee93
Last affected
517573a67088b5c7a25c18373434e3448892ee93
Database specific 
{
    "extracted_events": [
        {
            "introduced": "4.2-NA"
        },
        {
            "last_affected": "4.2-NA"
        }
    ],
    "source": "CPE_STRING",
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:*"
}

Affected versions

4.*
4.2-NA
n4.*
n4.2-dev

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-21688.json"