CVE ID: CVE-2013-1121
Release Date: 2013 September 17 13:05 UTC (GMT)
Last Updated: 2013 September 17 13:05 UTC (GMT)
SummaryA vulnerability in the Border Gateway Protocol (BGP) code of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the affected device to reload.
The vulnerability is due to an issue with the regex engine used when processing complex regular expressions. An attacker could exploit this vulnerability by injecting specific autonomous system (AS) path sets. If the affected device has a complex regular expression applied to the inbound routes, the vulnerability may be triggered. An exploit could allow the attacker to trigger Cisco NX-OS Software to restart.
|Cisco NX-OS Software||CSCuf49554||5.4/4.5|
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/en/US/products/products_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.
DisclaimerTHIS 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.
|Cisco Security Advisory||Cisco IPS Signature||Alerts|