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=========================================================== Ubuntu Security Notice USN-650-1 October 02, 2008 cpio vulnerability CVE-2007-4476 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 7.04 Ubuntu 7.10 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 6.06 LTS: cpio 2.6-10ubuntu0.3 Ubuntu 7.04: cpio 2.6-17ubuntu0.7.04.1 Ubuntu 7.10: cpio 2.8-1ubuntu2.2 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: A buffer overflow was discovered in cpio. If a user were tricked into opening a crafted cpio archive, an attacker could cause a denial of service via application crash, or possibly execute code with the privileges of the user invoking the program. (CVE-2007-4476)