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=========================================================== Ubuntu Security Notice USN-770-1 May 04, 2009 clamav vulnerability https://launchpad.net/bugs/365823 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 9.04 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 9.04: clamav-milter 0.95.1+dfsg-1ubuntu1.2 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: A flaw was discovered in the clamav-milter initscript which caused the ownership of the current working directory to be changed to the 'clamav' user. This update attempts to repair the incorrect ownership for standard system directories, but it is recommended that the following command be performed to report any other directories that may be affected: $ sudo find -H / -type d -user clamav \! -group clamav 2>/dev/null Systems configured to run clamav as a user other than the default 'clamav' user will need to adjust the above command accordingly.