FreeBSD : nsd -- Denial of Service (17f369dc-d7e7-11e1-90a2-000c299b62e1)

This script is Copyright (C) 2012-2013 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing a security-related update.

Description :

Tom Hendrikx reports :

It is possible to crash (SIGSEGV) a NSD child server process by
sending it a DNS packet from any host on the internet and the per zone
stats build option is enabled. A crashed child process will
automatically be restarted by the parent process, but an attacker may
keep the NSD server occupied restarting child processes by sending it
a stream of such packets effectively preventing the NSD server to
serve.

See also :

http://www.nlnetlabs.nl/downloads/CVE-2012-2979.txt
http://www.nessus.org/u?df413311

Solution :

Update the affected package.

Risk factor :

High

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 60150 ()

Bugtraq ID:

CVE ID: CVE-2012-2979

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