read_header in archive_read_support_format_rar.c in libarchive 3.3.2 suffers from an off-by-one error for UTF-16 names in RAR archives, leading to an out-of-bounds read in archive_read_format_rar_read_header.
https://www.debian.org/security/2018/dsa-4360
https://usn.ubuntu.com/3859-1/
https://security.gentoo.org/glsa/201908-11
https://lists.debian.org/debian-lts-announce/2018/11/msg00037.html
https://github.com/libarchive/libarchive/commit/5562545b5562f6d12a4ef991fae158bf4ccf92b6