Cisco Security Advisory: Cisco IOS Software Resource Reservation Protocol Denial of Service Vulnerability

Cisco Systems Product Security Incident Response Team psirt at cisco.com
Wed Mar 27 16:13:56 UTC 2013


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Cisco IOS Software Resource Reservation Protocol Denial of Service
Vulnerability

Advisory ID: cisco-sa-20130327-rsvp

Revision 1.0

For Public Release 2013 March 27 16:00  UTC (GMT)
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Summary
=======

The Resource Reservation Protocol (RSVP) feature in Cisco IOS Software
and Cisco IOS XE Software contains a vulnerability when used on a
device that has Multiprotocol Label Switching with Traffic Engineering
(MPLS-TE) enabled. Successful exploitation of the vulnerability could
allow an unauthenticated, remote attacker to cause a reload of the
affected device. Repeated exploitation could result in a sustained
denial of service (DoS) condition.

Cisco has released free software updates that address this
vulnerability. There are no workarounds available to mitigate this
vulnerability.

This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130327-rsvp

Note: The March 27, 2013, Cisco IOS Software Security Advisory bundled
publication includes seven Cisco Security Advisories. All advisories
address vulnerabilities in Cisco IOS Software. Each Cisco IOS Software
Security Advisory lists the Cisco IOS Software releases that correct
the vulnerability or vulnerabilities detailed in the advisory as well
as the Cisco IOS Software releases that correct all Cisco IOS Software
vulnerabilities in the March 2013 bundled publication.

Individual publication links are in "Cisco Event Response: Semiannual
Cisco IOS Software Security Advisory Bundled Publication" at the
following link:
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar13.html
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