CVE-2020-20450

HIGH

FFmpeg 4.2 - Denial of Service via Null Pointer Dereference in libavformat/aviobuf.c

Title source: llm
STIX 2.1

Description

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

References (2)

Core 2
Core References
Issue Tracking, Vendor Advisory x_refsource_misc
https://trac.ffmpeg.org/ticket/7993
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2021/dsa-4998

Scores

CVSS v3 7.5
EPSS 0.0052
EPSS Percentile 66.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (2)
debian/debian_linux 11.0
ffmpeg/ffmpeg 4.2
Published May 25, 2021
Tracked Since Feb 18, 2026