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Debian Security Advisory DSA 3096-1 (pdns-recursor - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Florian Maury from ANSSI discovered a flaw in pdns-recursor, a recursive DNS server : a remote attacker controlling maliciously-constructed zones or a rogue server could affect the performance of pdns-recursor, thus leading to resource exhaustion and a potential denial-of-service.
Insight
Insight
PowerDNS is a versatile nameserver which supports a large number of different backends ranging from simple zonefiles to relational databases and load balancing/failover algorithms. PowerDNS tries to emphasize speed and security.
Affected Software
Affected Software
pdns-recursor on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the stable distribution (wheezy), this problem has been fixed in version 3.3-3+deb7u1. For the upcoming stable distribution (jessie) and unstable distribution (sid), this problem has been fixed in version 3.6.2-1. We recommend that you upgrade your pdns-recursor packages.