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=========================================================== Ubuntu Security Notice USN-439-1 March 21, 2007 file vulnerability CVE-2007-1536 =========================================================== 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: libmagic1 4.12-1ubuntu1.1 Ubuntu 6.06 LTS: libmagic1 4.16-0ubuntu3.1 Ubuntu 6.10: libmagic1 4.17-2ubuntu1.1 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: Jean-Sebastien Guay-Leroux discovered that "file" did not correctly check the size of allocated heap memory. If a user were tricked into examining a specially crafted file with the "file" utility, a remote attacker could execute arbitrary code with user privileges.