Certain The MPlayer Project products are vulnerable to Buffer Overflow via the function mp_unescape03() of libmpdemux/mpeg_hdr.c. This affects mencoder SVN-r38374-13.0.1 and mplayer SVN-r38374-13.0.1.
https://trac.mplayerhq.hu/ticket/2406
https://lists.debian.org/debian-lts-announce/2022/12/msg00042.html