FreeBSD : maradns -- denial of service when resolving a long DNS hostname (8015600f-2c80-11e0-9cc1-00163e5bf4f9)

This script is Copyright (C) 2011-2013 Tenable Network Security, Inc.


Synopsis :

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

Description :

MaraDNS developer Sam Trenholme reports :

... a mistake in allocating an array of integers, allocating it in
bytes instead of sizeof(int) units. This resulted in a buffer being
too small, allowing it to be overwritten. The impact of this
programming error is that MaraDNS can be crashed by sending MaraDNS a
single 'packet of death'. Since the data placed in the overwritten
array can not be remotely controlled (it is a list of increasing
integers), there is no way to increase privileges exploiting this bug.

See also :

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=610834
http://www.nessus.org/u?93b62427

Solution :

Update the affected package.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.5
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 51832 ()

Bugtraq ID: 45966

CVE ID: CVE-2011-0520

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now