Description
In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified other impact when there is no valid close function pointer.
References (6)
Core 6
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15733
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202003-65
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4722
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4431-1/
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2021/01/msg00026.html
Scores
CVSS v3
9.8
EPSS
0.0067
EPSS Percentile
71.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-476
Status
published
Products (6)
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
20.04
debian/debian_linux
9.0
debian/debian_linux
10.0
ffmpeg/ffmpeg
< 3.4.7
Published
Oct 14, 2019
Tracked Since
Feb 18, 2026