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[ GLSA 200502-32 ] UnAce: Buffer overflow and directory traversal vulnerabilities
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Mon, 28 Feb 2005 17:37:58 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200502-32 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: UnAce: Buffer overflow and directory traversal vulnerabilities Date: February 28, 2005 Bugs: #81958 ID: 200502-32 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== UnAce is vulnerable to several buffer overflow and directory traversal attacks. Background ========== UnAce is an utility to extract, view and test the contents of an ACE archive. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/unace <= 1.2b *>= 1.2b-r1 app-arch/unace >= 2.0 *>= 1.2b-r1 Description =========== Ulf Harnhammar discovered that UnAce suffers from buffer overflows when testing, unpacking or listing specially crafted ACE archives (CAN-2005-0160). He also found out that UnAce is vulnerable to directory traversal attacks, if an archive contains "./.." sequences or absolute filenames (CAN-2005-0161). Impact ====== An attacker could exploit the buffer overflows to execute malicious code or the directory traversals to overwrite arbitrary files. Workaround ========== There is no known workaround at this time. Resolution ========== All UnAce users should upgrade to the latest available 1.2 version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/unace-1.2b-r1" References ========== [ 1 ] CAN-2005-0160 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0160 [ 2 ] CAN-2005-0161 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0161 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200502-32.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 200502-32 ] UnAce: Buffer overflow and directory traversal vulnerabilities Sune Kloppenborg Jeppesen (Feb 28)