NULL pointer dereference in Ffmpeg

CVE-2020-20450

FFmpeg 4.2 is affected by null pointer dereference passed as argument to libavformat/aviobuf.c, which could cause a Denial of Service.

EPSS: 0.011 (61.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ffmpeg — versions 4.2
Debian Debian_linux — versions 11.0
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

akaganeite/CVE4PP

References

cve@mitre.org (x_refsource_MISC, Issue Tracking, Vendor Advisory)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)

Frequently asked questions

What is CVE-2020-20450?: CVE-2020-20450 is a high-severity vulnerability in Ffmpeg, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2021-05-25.
How severe is CVE-2020-20450?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-20450 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.