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=========================================================== Ubuntu Security Notice USN-141-1 June 21, 2005 tcpdump vulnerability CAN-2005-1267 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 4.10 (Warty Warthog) Ubuntu 5.04 (Hoary Hedgehog) The following packages are affected: tcpdump The problem can be corrected by upgrading the affected package to version 3.8.3-3ubuntu0.3 (for Ubuntu 4.10), or 3.8.3-3ubuntu0.4 (for Ubuntu 5.04). In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: It was discovered that certain invalid BGP packets triggered an infinite loop in tcpdump, which caused tcpdump to stop working. This could be abused by a remote attacker to bypass tcpdump analysis of network traffic.