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TITLE:
Cisco Products EAP Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA27329

VERIFY ADVISORY:
http://secunia.com/advisories/27329/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From local network

OPERATING SYSTEM:
Cisco IOS 12.x
http://secunia.com/product/182/
Cisco CATOS 8.x
http://secunia.com/product/3564/
Cisco CATOS 7.x
http://secunia.com/product/185/
Cisco CATOS 6.x
http://secunia.com/product/527/
Cisco IOS R12.x
http://secunia.com/product/50/

DESCRIPTION:
A vulnerability has been reported in various Cisco products, which
can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerability is caused due to an error in the implementation of
Extensible Authentication Protocol (EAP) when processing a specially
crafted EAP Response Identity packet. This can be exploited to reboot
an affected device.

The vulnerability affects the following products:
* Wireless EAP 12.3.JA, 12.3.JEA, 12.3.JEB, 12.3.JEC and 12.4.JA
* Wired EAP (Cisco IOS) 12.1 and 12.2
* Wired EAP (Cisco CatOS) 6.x, 7.x and 8.x

SOLUTION:
Update to a fixed version (see vendor advisory for details).
http://www.cisco.com/warp/public/707/cisco-sr-20071019-eap.shtml

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Laurent Butti, Julien Tinnès and Franck Veysset of
France Telecom Group.

ORIGINAL ADVISORY:
http://www.cisco.com/warp/public/707/cisco-sr-20071019-eap.shtml

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