Heap-based buffer overflow in the ask_outfile_name function in openfile.c for GnuPG (gpg) 1.4 and 2.0, when running interactively, might allow attackers to execute arbitrary code via messages with "C-escape" expansions, which cause the make_printable_string function to return a longer string than expected while constructing a prompt.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11228
https://issues.rpath.com/browse/RPL-826
https://exchange.xforce.ibmcloud.com/vulnerabilities/30550
https://bugs.g10code.com/gnupg/issue728
http://www.vupen.com/english/advisories/2006/4736
http://www.ubuntu.com/usn/usn-393-2
http://www.ubuntu.com/usn/usn-389-1
http://www.trustix.org/errata/2006/0068/
http://www.securityfocus.com/bid/21306
http://www.securityfocus.com/archive/1/453253/100/100/threaded
http://www.securityfocus.com/archive/1/452829/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2006-0754.html
http://www.openpkg.com/security/advisories/OpenPKG-SA-2006.037.html
http://www.mandriva.com/security/advisories?name=MDKSA-2006:221
http://www.debian.org/security/2006/dsa-1231
http://support.avaya.com/elmodocs2/security/ASA-2007-047.htm
http://securitytracker.com/id?1017291
http://securityreason.com/securityalert/1927
http://security.gentoo.org/glsa/glsa-200612-03.xml
http://secunia.com/advisories/24047
http://secunia.com/advisories/23513
http://secunia.com/advisories/23303
http://secunia.com/advisories/23299
http://secunia.com/advisories/23284
http://secunia.com/advisories/23269
http://secunia.com/advisories/23250
http://secunia.com/advisories/23171
http://secunia.com/advisories/23161
http://secunia.com/advisories/23146
http://secunia.com/advisories/23110
http://secunia.com/advisories/23094
http://lists.suse.com/archive/suse-security-announce/2006-Dec/0004.html
http://lists.gnupg.org/pipermail/gnupg-announce/2006q4/000241.html