Integer signedness error in the archive_write_zip_data function in archive_write_set_format_zip.c in libarchive 3.1.2 and earlier, when running on 64-bit machines, allows context-dependent attackers to cause a denial of service (crash) via unspecified vectors, which triggers an improper conversion between unsigned and signed types, leading to a buffer overflow.
https://www.freebsd.org/security/advisories/FreeBSD-SA-16:23.libarchive.asc
http://www.ubuntu.com/usn/USN-2549-1
http://www.securitytracker.com/id/1035995
http://www.mandriva.com/security/advisories?name=MDVSA-2013:147
http://lists.opensuse.org/opensuse-updates/2015-03/msg00065.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101876.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101872.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101700.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101687.html