CVE-2019-12874

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-06-18 · updated 2026-06-17
Weakness: CWE-415

Description

An issue was discovered in zlib_decompress_extra in modules/demux/mkv/util.cpp in VideoLAN VLC media player 3.x through 3.0.7. The Matroska demuxer, while parsing a malformed MKV file type, has a double free.

Affected products

VideoLAN VLC: from 3.0.0 through 3.0.7

References

http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=81023659c7de5ac2637b4a879195efef50846102
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/108882
https://security.gentoo.org/glsa/201908-23
https://usn.ubuntu.com/4074-1/
http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=81023659c7de5ac2637b4a879195efef50846102
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

Get alerted when CVE-2019-12874 or the next vulnerability affects your stack