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=========================================================== Ubuntu Security Notice USN-185-1 September 20, 2005 cupsys vulnerability CAN-2004-2154 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 4.10 (Warty Warthog) The following packages are affected: cupsys The problem can be corrected by upgrading the affected package to version 1.1.20final+cvs20040330-4ubuntu16.5. In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: A flaw was detected in the printer access control list checking in the CUPS server. Printer names were compared in a case sensitive manner; by modifying the capitalization of printer names, a remote attacker could circumvent ACLs and print to printers he should not have access to. The Ubuntu 5.04 version of cupsys is not vulnerable against this.