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=========================================================== Ubuntu Security Notice USN-460-2 May 22, 2007 samba vulnerabilities http://bugs.debian.org/424629 =========================================================== 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: samba 3.0.24-2ubuntu1.2 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: USN-460-1 fixed several vulnerabilities in Samba. The upstream changes for CVE-2007-2444 had an unexpected side-effect in Feisty. Shares configured with the "force group" option no longer behaved correctly. This update corrects the problem. We apologize for the inconvenience. Original advisory details: Paul Griffith and Andrew Hogue discovered that Samba did not fully drop root privileges while translating SIDs. A remote authenticated user could issue SMB operations during a small window of opportunity and gain root privileges. (CVE-2007-2444)