Updated:  August 10, 2005

Status

Affected

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

According to Cisco's public statement:, IOS v.11.1 through 12.0 are subject to this vulnerability. Upgrade Upgrade to a verion of IOS after v12.0. Filter OSPF Packets If upgrading is problematic, you can configure the router to filter OSPF packets. OSPF communicates using the IP protocol "ospf" and can be filtered as that protocol. Unlike TCP-based and UDP-based protocols, no port number is required. See Cisco's public statement for its instructions on how to configure the filtering.