CVE-2019-17539 Information

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.

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=15733 https://github.com/FFmpeg/FFmpeg/commit/8df6884832ec413cf032dfaa45c23b1c7876670c 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