- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200611-24 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: LHa: Multiple vulnerabilities Date: November 28, 2006 Bugs: #151252 ID: 200611-24 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== LHa is affected by several vulnerabilities including the remote execution of arbitrary code. Background ========== LHa is a console-based program for packing and unpacking LHarc archives. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/lha < 114i-r6 >= 114i-r6 Description =========== Tavis Ormandy of the Google Security Team discovered several vulnerabilities in the LZH decompression component used by LHa. The make_table function of unlzh.c contains an array index error and a buffer overflow vulnerability. The build_tree function of unpack.c contains a buffer underflow vulnerability. Additionally, unlzh.c contains a code that could run in an infinite loop. Impact ====== By enticing a user to uncompress a specially crafted archive, a remote attacker could cause a Denial of Service by CPU consumption or execute arbitrary code with the rights of the user running the application. Workaround ========== There is no known workaround at this time. Resolution ========== All LHa users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/lha-114i-r6" References ========== [ 1 ] CVE-2006-4335 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4335 [ 2 ] CVE-2006-4336 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4336 [ 3 ] CVE-2006-4337 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4337 [ 4 ] CVE-2006-4338 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4338 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200611-24.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@xxxxxxxxxx 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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