What’s Vulnerable › Vulnerabilities

CVE-2018-19857

• Severity: critical (CVSS 9.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-05 · updated 2026-10-15
• Weakness: CWE-824

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.

Affected products

• Debian Linux: 9.0
• VideoLAN VLC: 3.0.4

References

• 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%3Ba=commit%3Bh=0cc5ea748ee5ff7705dde61ab15dff8f58be39d0
• https://usn.ubuntu.com/4074-1/
• https://www.debian.org/security/2019/dsa-4366
• 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

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