Joined: 12 May 2004
|Posted: Fri Dec 19, 2008 10:26 pm Post subject: [ GLSA 200812-19 ] PowerDNS: Multiple vulnerabilities
|Gentoo Linux Security Advisory
Title: PowerDNS: Multiple vulnerabilities (GLSA 200812-19)
Date: December 19, 2008
Bug(s): #234032, #247079
Two vulnerabilities have been discovered in PowerDNS, possibly leading to a
Denial of Service and easing cache poisoning attacks.
The PowerDNS Nameserver is an authoritative-only nameserver which uses
a flexible backend architecture.
Vulnerable: < 220.127.116.11
Unaffected: >= 18.104.22.168
Architectures: All supported architectures
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
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.
There is no known workaround at this time.
All PowerDNS users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/pdns-22.214.171.124"
Last edited by GLSA on Thu Jun 16, 2011 4:27 am; edited 2 times in total