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=========================================================== Ubuntu Security Notice USN-507-1 August 30, 2007 tcp-wrappers vulnerability CVE-2007-4601 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 7.04 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 7.04: libwrap0 7.6.dbs-11ubuntu0.1 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: It was discovered that the TCP wrapper library was incorrectly allowing connections to services that did not specify server-side connection details. Remote attackers could connect to services that had been configured to block such connections. This only affected Ubuntu Feisty.