-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200711-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Cpio: Buffer overflow Date: November 14, 2007 Bugs: #196978 ID: 200711-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== GNU cpio contains a buffer overflow vulnerability, possibly resulting in a Denial of Service. Background ========== GNU cpio copies files into or out of a cpio or tar archive. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/cpio < 2.9-r1 >= 2.9-r1 Description =========== A buffer overflow vulnerability in the safer_name_suffix() function in GNU cpio has been discovered. Impact ====== A remote attacker could entice a user to open a specially crafted archive file resulting in a stack-based buffer overflow, possibly crashing the application. It is disputed whether the execution of arbitrary code is possible. Workaround ========== There is no known workaround at this time. Resolution ========== All GNU cpio users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/cpio-2.9-r1" References ========== [ 1 ] CVE-2007-4476 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4476 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200711-18.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org. License ======= Copyright 2007 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHO2u2uhJ+ozIKI5gRAmnOAJwMQ1PcCPV7njoFZjURGIq8yaMcNwCglXrY rzGwkgPMnvNOL4Kevl6kEns= =m21S -----END PGP SIGNATURE-----