CVE-2018-19857: Debian Linux

Critical severity, CVSS 9.1. EPSS: 3.9% chance of exploitation in the next 30 days.

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.

Affected products

  • Debian Debian Linux: version 9.0 only
  • Videolan Vlc Media Player: version 3.0.4 only

Published 2018-12-05. Last modified 2026-06-17.