CVE-2019-17542 Information

Description

FFmpeg before 4.2 has a heap-based buffer overflow in vqa_decode_chunk because of an out-of-array access in vqa_decode_init in libavcodec/vqavideo.c.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15919 https://github.com/FFmpeg/FFmpeg/commit/02f909dc24b1f05cfbba75077c7707b905e63cd2 https://lists.debian.org/debian-lts-announce/2019/12/msg00003.html https://lists.debian.org/debian-lts-announce/2020/07/msg00022.html https://security.gentoo.org/glsa/202003-65 https://usn.ubuntu.com/4431-1/ https://www.debian.org/security/2020/dsa-4722

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8