Multiple buffer overflows in the (1) heap_add_entry and (2) relocate_dir functions in archive_read_support_format_iso9660.c in libarchive through 2.8.5 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted ISO9660 image.
http://code.google.com/p/libarchive/source/detail?r=3158
http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
http://secunia.com/advisories/48034
http://support.apple.com/kb/HT5281
http://www.debian.org/security/2012/dsa-2413