Cisco Unified Communications Manager (CUCM) 5.x before 5.1(2) and 6.x before 6.1(1) allows remote attackers to cause a denial of service (service interruption) via a SIP JOIN message with a malformed header, aka Bug ID CSCsi48115.Referenceshttp://www.cisco.com/en/US/products/products_security_advisory09186a0080995688.shtmlhttp://www.vupen.com/english/advisories/2008/1533http://www.securityfocus.com/bid/29221https://exchange.xforce.ibmcloud.com/vulnerabilities/42417http://secunia.com/advisories/30238http://securitytracker.com/id?1020022
