Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities
23 Nov. 2010
Summary
Multiple vulnerabilities exist in the Session Initiation Protocol (SIP) implementation in Cisco IOS Software that could allow an unauthenticated, remote attacker to cause a reload of an affected device when SIP operation is enabled.
Three vulnerabilities exist in the SIP implementation in Cisco IOS Software that may allow a remote attacker to cause an affected device to reload. These vulnerabilities are triggered when the device running Cisco IOS Software processes crafted SIP messages. Successful exploitation of the vulnerabilities in this advisory may result in a reload of the device. Repeated exploitation could result in a sustained denial of service condition.