National Cyber Awareness System

Vulnerability Summary for CVE-2012-3950

Overview

The Intrusion Prevention System (IPS) feature in Cisco IOS 12.3 through 12.4 and 15.0 through 15.2, in certain configurations of enabled categories and missing signatures, allows remote attackers to cause a denial of service (device reload) via DNS packets, aka Bug ID CSCtw55976.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: XF

Name: ciscoios-ips-dos(78882)

Hyperlink:http://xforce.iss.net/xforce/xfdb/78882

External Source: SECTRACK

Name: 1027580

Hyperlink:http://www.securitytracker.com/id?1027580

External Source: BID

Name: 55695

Hyperlink:http://www.securityfocus.com/bid/55695

External Source: CISCO

Name: 20120926 Cisco IOS Software Intrusion Prevention System Denial of Service Vulnerability

Type: Advisory

Hyperlink:http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120926-ios-ips

External Source: SECUNIA

Name: 50777

Hyperlink:http://secunia.com/advisories/50777