drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in PowerDNS
Name: |
Denial of Service in PowerDNS |
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ID: |
201202-04 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Do, 23. Februar 2012, 10:49 |
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Referenzen: |
http://doc.powerdns.com/powerdns-advisory-2012-01.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0206 |
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Applikationen: |
PowerDNS Authoritative Server |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201202-04 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: PowerDNS: Denial of Service Date: February 22, 2012 Bugs: #398403 ID: 201202-04
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Synopsis ========
A vulnerability in PowerDNS could allow a remote attacker to create a Denial of Service condition.
Background ==========
The PowerDNS nameserver is an authoritative-only nameserver which uses a flexible backend architecture.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-dns/pdns < 3.0.1 >= 3.0.1
Description ===========
A vulnerability has been found in PowerDNS which could cause a packet loop of DNS responses.
Impact ======
A remote attacker could send specially crafted DNS response packets, possibly resulting in a Denial of Service condition.
Workaround ==========
PowerDNS users can set "cache-ttl=0" in /etc/powerdns/pdns.conf and then restart the PowerDNS daemon:
# /etc/init.d/pdns restart
Please review the PowerDNS Security Advisory below for more workaround details.
Resolution ==========
All PowerDNS users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdns-3.0.1"
References ==========
[ 1 ] CVE-2012-0206 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0206 [ 2 ] PowerDNS Security Advisory 2012-01 http://doc.powerdns.com/powerdns-advisory-2012-01.html
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201202-04.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 https://bugs.gentoo.org.
License =======
Copyright 2012 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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