libvpx.so is vulnerable to remote code execution. The ParseContentEncodingEntry function of mkvparser.cc does not reset of a freed pointer. causing a double free memory corruption and subsequently allowing to trigger a remote code execution.
lists.opensuse.org/opensuse-security-announce/2020-01/msg00049.html
bugzilla.redhat.com/show_bug.cgi?id=1789008
github.com/webmproject/libvpx/commit/6a7c84a2449dcc70de2525df209afea908622399
lists.fedoraproject.org/archives/list/[email protected]/message/DQSTK442ATWJOR4TU3MR6C3N5A6NDFFN/
lists.fedoraproject.org/archives/list/[email protected]/message/U2IIA3RSYABBUCFIHXIRVUT5CTJVWWZ6/
source.android.com/security/bulletin/2019-08-01
usn.ubuntu.com/4199-1/