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ESB-2014.0779 - [Cisco] Cisco IOS: Denial of service - Remote/unauthenticated

Date: 21 May 2014

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.0779
             Cisco IOS Software RTCP Input Queue Vulnerability
                                21 May 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Cisco IOS
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-3268  

Original Bulletin: 
   http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3268

- --------------------------BEGIN INCLUDED TEXT--------------------

Cisco Security Notice

Cisco IOS Software RTCP Input Queue Vulnerability

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3268

CVE ID: CVE-2014-3268

Release Date: 2014 May 19 13:14 UTC (GMT)

Last Updated: 2014 May 19 16:56 UTC (GMT)

Related Documents:

Summary

A vulnerability in handling Real-Time Control Protocol (RTCP) traffic in Cisco
Unified Border Element (CUBE) could allow an unauthenticated, remote attacker
to cause traffic that is destined to an affected device and traffic that needs
to be processed switched to fail.

The vulnerability is due to exhaustion of the interface input queue by the 
RTCP traffic. An attacker could exploit this vulnerability by sending RTCP 
packets in a specific sequence. An exploit could allow the attacker to cause 
traffic to fail that is destined to an affected device as well as traffic that
needs to be processed switched.

Affected Products

Product 	More Information CVSS

IOS 		CSCuj72215 	 5.0/4.1

What Is a Cisco Security Notice?

The Cisco Product Security Incident Response Team (PSIRT) publishes Cisco 
Security Notices to inform customers of low- to mid-level severity security 
issues involving Cisco products.

Customers who wish to upgrade to a software version that includes fixes for 
these issues should contact their normal support channels. Free software 
updates will not be provided for issues that are disclosed through a Cisco 
Security Notice.

For additional information about Cisco PSIRT publications, see the Cisco 
Security Vulnerability Policy at 
http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html

Customers Using Third-Party Support Organizations

Customers may have Cisco products that are provided or maintained through 
prior or existing agreements with third-party support organizations, such as 
Cisco Partners, authorized resellers, or service providers. For these 
products, customers should consult their service providers or support 
organizations to ensure that any applied workaround or fix is the most 
appropriate in the intended network before it is deployed.

Disclaimer

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF 
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO 
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A stand-alone copy or paraphrase of the text of this document that omits the 
distribution URL is an uncontrolled copy, and may lack important information 
or contain factual errors.

- --------------------------END INCLUDED TEXT--------------------

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        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
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