The archive_string_append function in archive_string.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (crash) via a crafted cab files, related to "overlapping memcpy."
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html
https://github.com/libarchive/libarchive/issues/506
https://security.gentoo.org/glsa/201701-03