The following packages are affected: libsnmp5 snmpd
A remote Denial of Service has been discovered in the SMNP (Simple Network Management Protocol) library. If a SNMP agent uses TCP sockets for communication, a malicious SNMP server could exploit this to crash the agent. Please note that by default SNMP uses UDP sockets.
Solution: The problem can be corrected by upgrading the affected package to version 5.1.1-2ubuntu3.1 (for Ubuntu 4.10), or 5.1.2-6ubuntu2.1 (for Ubuntu 5.04). In general, a standard system upgrade is sufficient to effect the necessary changes.