Security Information / 2017 / Security Information -- DSA-3763-1 pdns-recursor

Debian Security Advisory

DSA-3763-1 pdns-recursor -- security update

Date Reported:

13 Jan 2017

Affected Packages:

pdns-recursor

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2016-7068.

More information:

Florian Heinz and Martin Kluge reported that pdns-recursor, a recursive DNS server, parses all records present in a query regardless of whether they are needed or even legitimate, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the pdns server, resulting in a partial denial of service if the system becomes overloaded.

For the stable distribution (jessie), this problem has been fixed in version 3.6.2-2+deb8u3.

We recommend that you upgrade your pdns-recursor packages.