Detections
Analytics

FreeBSD : dns/nsd -- DoS vulnerability from non-standard DNS packet (ce82bfeb-d276-11e1-92c6-14dae938ec40)

medium Nessus Plugin ID 60089

Language:

Synopsis

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

Description

Marek Vavrusa and Lubos Slovak report :

It is possible to crash (SIGSEGV) a NSD child server process by sending it a non-standard DNS packet from any host on the internet. 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.

Solution

Update the affected package.

See Also

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=170024

https://www.nlnetlabs.nl/404/

http://www.nessus.org/u?45e26328

Plugin Details

Severity: Medium

ID: 60089

File Name: freebsd_pkg_ce82bfebd27611e192c614dae938ec40.nasl

Version: 1.8

Type: local

Published: 7/23/2012

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

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

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

Patch Publication Date: 7/20/2012

Vulnerability Publication Date: 7/19/2012

Reference Information

CVE: CVE-2012-2978