Security Information / 2017 / Security Information -- DSA-3910-1 knot

Debian Security Advisory

DSA-3910-1 knot -- security update

Date Reported:

14 Jul 2017

Affected Packages:

knot

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 865678.
In Mitre's CVE dictionary: CVE-2017-11104.

More information:

Clément Berthaux from Synaktiv discovered a signature forgery vulnerability in knot, an authoritative-only DNS server. This vulnerability allows an attacker to bypass TSIG authentication by sending crafted DNS packets to a server.

For the oldstable distribution (jessie), this problem has been fixed in version 1.6.0-1+deb8u1.

For the stable distribution (stretch), this problem has been fixed in version 2.4.0-3+deb9u1.

For the testing (buster) and unstable (sid), this problem will be fixed in a later update.

We recommend that you upgrade your knot packages.