A vulnerability has been reported in Ciso IOS, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable network device.

The vulnerability is caused due to an unspecified error within the processing of IPv6 traffic and can be exploited via a specially crafted IPv6 packet received on a logical interface.

Successful exploitation requires that the packet is sent from a local network segment and that the device is configured for IPv6.

Solution
The vendor has issued updated versions (see patch matrix in vendor advisory).

Provided and/or discovered by
The vendor reports that the vulnerability was disclosed at the Black Hat security conference.

Changelog
Further details available to Secunia VIM customers

Original Advisory
Cisco:
http://www.cisco.com/warp/public/707/cisco-sa-20050729-ipv6.shtml

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers