- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201203-20 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: Logwatch: Arbitrary code execution Date: March 28, 2012 Bugs: #356387 ID: 201203-20 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability in Logwatch might allow remote attackers to execute arbitrary code. Background ========== Logwatch analyzes and reports on system logs. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/logwatch < 7.4.0 >= 7.4.0 Description =========== logwatch.pl does not properly sanitize log filenames against shell metacharacters before passing them to the "system()" function. Impact ====== A remote attacker could pass a specially crafted log filename to Logwatch, possibly resulting in execution of arbitrary code with root privileges or a Denial of Service condition. Workaround ========== There is no known workaround at this time. Resolution ========== All Logwatch users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/logwatch-7.4.0" References ========== [ 1 ] CVE-2011-1018 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1018 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201203-20.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 https://bugs.gentoo.org. License ======= Copyright 2012 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