Stack-based buffer overflow in emacs allows user-assisted attackers to cause a denial of service (application crash) and possibly have unspecified other impact via a large precision value in an integer format string specifier to the format function, as demonstrated via a certain "emacs -batch -eval" command line.
https://exchange.xforce.ibmcloud.com/vulnerabilities/38904
http://www.vupen.com/english/advisories/2008/0924/references
http://www.novell.com/linux/security/advisories/2007_25_sr.html
http://www.mandriva.com/security/advisories?name=MDVSA-2008:034
http://security.gentoo.org/glsa/glsa-200712-03.xml
http://secunia.com/advisories/30109
http://secunia.com/advisories/29420
http://secunia.com/advisories/28838
http://secunia.com/advisories/27984
http://secunia.com/advisories/27965
http://lists.opensuse.org/opensuse-security-announce/2008-02/msg00003.html
http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html