Cisco IOS XR 3.4.0 through 3.9.1, when BGP is enabled, does not properly handle unrecognized transitive attributes, which allows remote attackers to cause a denial of service (peering reset) via a crafted prefix announcement, as demonstrated in the wild in August 2010 with attribute type code 99, aka Bug ID CSCti62211.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ios_xr | Cisco | 3.4.0 (including) | 3.9.1 (including) |