CVE-2020-21688

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Source
https://nvd.nist.gov/vuln/detail/CVE-2020-21688
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-21688.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-21688
Downstream
Related
Published
2021-08-10T21:15:07.723Z
Modified
2025-11-14T10:56:34.526938Z
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.

References

Affected packages

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
517573a67088b5c7a25c18373434e3448892ee93

Affected versions

Other

N

n0.*

n0.11-dev
n0.12-dev
n0.8

n1.*

n1.1-dev
n1.2-dev
n1.3-dev

n2.*

n2.0
n2.1-dev
n2.2-dev
n2.3-dev
n2.4-dev
n2.5-dev
n2.6-dev
n2.7-dev
n2.8-dev
n2.9-dev

n3.*

n3.1-dev
n3.2-dev
n3.3-dev
n3.4-dev
n3.5-dev

n4.*

n4.1-dev
n4.2-dev

Database specific

source

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