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=========================================================== Ubuntu Security Notice USN-393-1 December 07, 2006 gnupg vulnerability CVE-2006-6235 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 5.10 Ubuntu 6.06 LTS Ubuntu 6.10 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 5.10: gnupg 1.4.1-1ubuntu1.6 Ubuntu 6.06 LTS: gnupg 1.4.2.2-1ubuntu2.4 Ubuntu 6.10: gnupg 1.4.3-2ubuntu3.2 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: Tavis Ormandy discovered that gnupg was incorrectly using the stack. If a user were tricked into processing a specially crafted message, an attacker could execute arbitrary code with the user's privileges.