GLSA-200702-03 : Snort: Denial of Service

This script is Copyright (C) 2007-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-200702-03
(Snort: Denial of Service)

Randy Smith, Christian Estan and Somesh Jha discovered that the rule
matching algorithm of Snort can be exploited in a way known as a
'backtracking attack' to perform numerous time-consuming operations.

Impact :

A remote attacker could send specially crafted network packets, which
would result in the cessation of the detections and the consumption of
the CPU resources.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200702-03.xml

Solution :

All Snort users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-analyzer/snort-2.6.1.2'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 24352 (gentoo_GLSA-200702-03.nasl)

Bugtraq ID:

CVE ID: CVE-2006-6931