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[ GLSA 200812-19 ] PowerDNS: Multiple vulnerabilities
From: Pierre-Yves Rofes <py () gentoo org>
Date: Fri, 19 Dec 2008 22:43:05 +0100
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200812-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: PowerDNS: Multiple vulnerabilities Date: December 19, 2008 Bugs: #234032, #247079 ID: 200812-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Two vulnerabilities have been discovered in PowerDNS, possibly leading to a Denial of Service and easing cache poisoning attacks. Background ========== The PowerDNS Nameserver is an authoritative-only nameserver which uses a flexible backend architecture. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dns/pdns < 2.9.21.2 >= 2.9.21.2 Description =========== Daniel Drown reported an error when receiving a HINFO CH query (CVE-2008-5277). Brian J. Dowling of Simplicity Communications discovered a previously unknown security implication of the PowerDNS behavior to not respond to certain queries it considers malformed (CVE-2008-3337). Impact ====== A remote attacker could send specially crafted queries to cause a Denial of Service. The second vulnerability in itself does not pose a security risk to PowerDNS Nameserver. However, not answering a query for an invalid DNS record within a valid domain allows for a larger spoofing window on third-party nameservers for domains being hosted by PowerDNS Nameserver itself. Workaround ========== There is no known workaround at this time. Resolution ========== All PowerDNS users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdns-2.9.21.2" References ========== [ 1 ] CVE-2008-3337 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3337 [ 2 ] CVE-2008-5277 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5277 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200812-19.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 2008 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 200812-19 ] PowerDNS: Multiple vulnerabilities Pierre-Yves Rofes (Dec 19)