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[ GLSA 200505-05 ] gzip: Multiple vulnerabilities
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Mon, 9 May 2005 21:26:43 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200505-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: gzip: Multiple vulnerabilities Date: May 09, 2005 Bugs: #89946, #90626 ID: 200505-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== gzip contains multiple vulnerabilities potentially allowing an attacker to execute arbitrary commands. Background ========== gzip (GNU zip) is a popular compression program. The included zgrep utility allows you to grep gzipped files in place. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/gzip < 1.3.5-r6 >= 1.3.5-r6 Description =========== The gzip and gunzip programs are vulnerable to a race condition when setting file permissions (CAN-2005-0988), as well as improper handling of filename restoration (CAN-2005-1228). The zgrep utility improperly sanitizes arguments, which may come from an untrusted source (CAN-2005-0758). Impact ====== These vulnerabilities could allow arbitrary command execution, changing the permissions of arbitrary files, and installation of files to an aribitrary location in the filesystem. Workaround ========== There is no known workaround at this time. Resolution ========== All gzip users should upgrade to the latest stable version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/gzip-1.3.5-r6" References ========== [ 1 ] CAN-2005-0758 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0758 [ 2 ] CAN-2005-0988 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0988 [ 3 ] CAN-2005-1228 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1228 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200505-05.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 2005 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/2.0
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- [ GLSA 200505-05 ] gzip: Multiple vulnerabilities Sune Kloppenborg Jeppesen (May 09)