The Control function of demux/mkv/mkv.cpp in VideoLAN VLC media player 3.0.7.1 has a use-after-free.
https://www.videolan.org/security/sb-vlc308.html
https://www.debian.org/security/2019/dsa-4504
https://usn.ubuntu.com/4131-1/
https://security.gentoo.org/glsa/201909-02
https://seclists.org/bugtraq/2019/Aug/36
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00046.html
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00036.html
http://git.videolan.org/?p=vlc.git&a=search&h=refs/heads/master&st=commit&s=cve-2019