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[ GLSA 200610-03 ] ncompress: Buffer Underflow
From: Raphael Marichez <falco () gentoo org>
Date: Fri, 6 Oct 2006 20:01:00 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200610-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: ncompress: Buffer Underflow Date: October 06, 2006 Bugs: #141728 ID: 200610-03 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A buffer underflow vulnerability has been reported in ncompress allowing for the execution of arbitrary code. Background ========== ncompress is a suite of utilities to create and extract Lempel-Ziff-Welch (LZW) compressed archives. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/ncompress < 4.2.4.1 >= 4.2.4.1 Description =========== Tavis Ormandy of the Google Security Team discovered a static buffer underflow in ncompress. Impact ====== An attacker could create a specially crafted LZW archive, that when decompressed by a user or automated system would result in the execution of arbitrary code with the permissions of the user invoking the utility. Workaround ========== There is no known workaround at this time. Resolution ========== All ncompress users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/ncompress-4.2.4.1" References ========== [ 1 ] CVE-2006-1168 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1168 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200610-03.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 2006 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
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- [ GLSA 200610-03 ] ncompress: Buffer Underflow Raphael Marichez (Oct 06)