Race condition

A vulnerability in the UDP processing code of Cisco IOS 15.1, 15.2, and 15.4 and IOS XE 3.14 through 3.18 could allow an unauthenticated, remote attacker to cause the input queue of an affected system to hold UDP packets, causing an interface queue wedge and a denial of service DoS condition. The...

CVE-2011-3276

CVE-2011-3276 relates to Cisco IOS NAT vulnerabilities affecting SIP over TCP (port 5060). The connected Cisco advisory and security entries describe how crafted SIP traffic could trigger a DoS, causing a device reload or hang by NAT processing SIP over TCP. The vulnerability is part of a broader...