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>> Cisco Catalyst Multi Protocol Label Switching Packets Denial of Service Vulnerability

Title : Cisco Catalyst Multi Protocol Label Switching Packets Denial of Service Vulnerability
VUPEN ID : VUPEN/ADV-2007-0782
CVE ID : GENERIC-MAP-NOMATCH
Rated as : Low Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-03-01


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Cisco Catalyst, which could be exploited by malicious users to cause a denial of service. This issue is due to an error when processing specially crafted Multi Protocol Label Switching (MPLS) packets sent to a system running in Hybrid Mode (CatOS software on the Supervisor Engine and IOS Software on the Multilayer Switch Feature Card) or running with Cisco IOS Software Modularity, which could be exploited by attackers to reload an affected system by sending a packet from the local network segment.

Affected Products

Cisco Catalyst 6000
Cisco Catalyst 6500
Cisco Catalyst 7600

Cisco IOS 12.x

Solution

Apply patches :
http://www.cisco.com/warp/public/707/cisco-sa-20070228-mpls.shtml#software

References

http://www.vupen.com/english/advisories/2007/0782
http://www.cisco.com/warp/public/707/cisco-sa-20070228-mpls.shtml

Credits

Vulnerability reported by a customer

ChangeLog

2007-03-01 : Initial release

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