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[ GLSA 200605-10 ] pdnsd: Denial of Service and potential arbitrary code execution
From: Sune Kloppenborg Jeppesen <jaervosz () gentoo org>
Date: Wed, 10 May 2006 07:02:19 +0200
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200605-10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: pdnsd: Denial of Service and potential arbitrary code execution Date: May 10, 2006 Bugs: #131341 ID: 200605-10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== pdnsd is vulnerable to a buffer overflow that may result in arbitrary code execution. Background ========== pdnsd is a proxy DNS server with permanent caching that is designed to cope with unreachable DNS servers. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dns/pdnsd < 1.2.4 >= 1.2.4 Description =========== The pdnsd team has discovered an unspecified buffer overflow vulnerability. The PROTOS DNS Test Suite, by the Oulu University Secure Programming Group (OUSPG), has also revealed a memory leak error within the handling of the QTYPE and QCLASS DNS queries, leading to consumption of large amounts of memory. Impact ====== An attacker can craft malicious DNS queries leading to a Denial of Service, and potentially the execution of arbitrary code. Workaround ========== There is no known workaround at this time. Resolution ========== All pdnsd users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdnsd-1.2.4-r1" References ========== [ 1 ] CVE-2006-2076 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2076 [ 2 ] CVE-2006-2077 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2077 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200605-10.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 200605-10 ] pdnsd: Denial of Service and potential arbitrary code execution Sune Kloppenborg Jeppesen (May 09)