CVE-2019-11338 Information

Description

libavcodec/hevcdec.c in FFmpeg 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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

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://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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8