A vulnerability was found in libebml. A use after free/double free vulnerability can occur in libebml while parsing Track elements of the MKV container which would crash the application.
Created libebml tracking bugs for this issue:
Affects: epel-all [bug 1412634]
Affects: fedora-all [bug 1412633]
Upon closer investigation, I believe it is a duplicate of CVE-2015-8789 (bug 1276332) and will close it as such upon confirmation from upstream.
*** This bug has been marked as a duplicate of bug 1276332 ***