CVE-2018-19857 Information

Description

The CAF demuxer in modules/demux/caf.c in VideoLAN VLC media player 3.0.4 may read memory from an uninitialized pointer when processing magic cookies in CAF files because a ReadKukiChunk() cast converts a return value to an unsigned int even if that value is negative. This could result in a denial of service and/or a potential infoleak.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00040.html http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00081.html http://www.securityfocus.com/bid/106130 https://dyntopia.com/advisories/013-vlc https://git.videolan.org/?p=vlc.git;a=commit;h=0cc5ea748ee5ff7705dde61ab15dff8f58be39d0 https://usn.ubuntu.com/4074-1/ https://www.debian.org/security/2019/dsa-4366

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

9.1