Multiple memory leaks in Cisco IOS 12.0 through 12.4 allow remote attackers to cause a denial of service (device crash) via a malformed SIP packet, aka (1) CSCsf11855, (2) CSCeb21064, (3) CSCse40276, (4) CSCse68355, (5) CSCsf30058, (6) CSCsb24007, and (7) CSCsc60249.
osvdb.org/36670
osvdb.org/36671
osvdb.org/36672
osvdb.org/36673
osvdb.org/36674
osvdb.org/36675
osvdb.org/36676
secunia.com/advisories/26363
securitytracker.com/id?1018533
www.cisco.com/en/US/products/products_security_advisory09186a0080899653.shtml
www.securityfocus.com/bid/25239
www.vupen.com/english/advisories/2007/2816
exchange.xforce.ibmcloud.com/vulnerabilities/35890
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5781