CVE-2019-11338

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-04-19 · updated 2026-06-17
Weakness: CWE-476

Description

libavcodec/hevcdec.c in FFmpeg 3.4 and 4.1.2 mishandles detection of duplicate first slices, which allows remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or possibly have unspecified other impact via crafted HEVC data.

Affected products

Canonical Ubuntu Linux: 16.04, 18.04, 18.10, 19.04, 20.04
Debian Linux: 8.0, 9.0
FFmpeg: 3.4, 4.1.2
Novell Suse Package Hub For Suse Linux Enterprise: 12

References

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00012.html
http://www.securityfocus.com/bid/108034
https://github.com/FFmpeg/FFmpeg/commit/54655623a82632e7624714d7b2a3e039dc5faa7e
https://github.com/FFmpeg/FFmpeg/commit/9ccc633068c6fe76989f487c8932bd11886ad65b
https://lists.debian.org/debian-lts-announce/2019/05/msg00043.html
https://seclists.org/bugtraq/2019/May/60
https://usn.ubuntu.com/3967-1/
https://usn.ubuntu.com/4431-1/
https://www.debian.org/security/2019/dsa-4449
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00012.html
http://www.securityfocus.com/bid/108034
https://github.com/FFmpeg/FFmpeg/commit/54655623a82632e7624714d7b2a3e039dc5faa7e

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