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

High Nessus Plugin ID 51832


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


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.


Update the affected package.

See Also

Plugin Details

Severity: High

ID: 51832

File Name: freebsd_pkg_8015600f2c8011e09cc100163e5bf4f9.nasl

Version: $Revision: 1.6 $

Type: local

Published: 2011/02/01

Modified: 2013/06/22

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:maradns, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/01/31

Vulnerability Publication Date: 2011/01/23

Reference Information

CVE: CVE-2011-0520

BID: 45966