Cisco IOS XR 3.8.1 and earlier allows remote authenticated users to cause a denial of service (process crash) via vectors involving a BGP UPDATE message with many AS numbers prepended to the AS path.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ios_xr | Cisco | * | 3.8.1 (including) |
| Ios_xr | Cisco | 3.0 (including) | 3.0 (including) |
| Ios_xr | Cisco | 3.0.1 (including) | 3.0.1 (including) |
| Ios_xr | Cisco | 3.1 (including) | 3.1 (including) |
| Ios_xr | Cisco | 3.1.0 (including) | 3.1.0 (including) |
| Ios_xr | Cisco | 3.2 (including) | 3.2 (including) |
| Ios_xr | Cisco | 3.2.1 (including) | 3.2.1 (including) |
| Ios_xr | Cisco | 3.2.2 (including) | 3.2.2 (including) |
| Ios_xr | Cisco | 3.2.3 (including) | 3.2.3 (including) |
| Ios_xr | Cisco | 3.2.4 (including) | 3.2.4 (including) |
| Ios_xr | Cisco | 3.2.50 (including) | 3.2.50 (including) |
| Ios_xr | Cisco | 3.3 (including) | 3.3 (including) |
| Ios_xr | Cisco | 3.4 (including) | 3.4 (including) |
| Ios_xr | Cisco | 3.4.0 (including) | 3.4.0 (including) |
| Ios_xr | Cisco | 3.4.1 (including) | 3.4.1 (including) |
| Ios_xr | Cisco | 3.4.2 (including) | 3.4.2 (including) |
| Ios_xr | Cisco | 3.4.3 (including) | 3.4.3 (including) |
| Ios_xr | Cisco | 3.5 (including) | 3.5 (including) |
| Ios_xr | Cisco | 3.5.2 (including) | 3.5.2 (including) |
| Ios_xr | Cisco | 3.5.3 (including) | 3.5.3 (including) |
| Ios_xr | Cisco | 3.5.4 (including) | 3.5.4 (including) |
| Ios_xr | Cisco | 3.6 (including) | 3.6 (including) |
| Ios_xr | Cisco | 3.6.0 (including) | 3.6.0 (including) |
| Ios_xr | Cisco | 3.6.1 (including) | 3.6.1 (including) |
| Ios_xr | Cisco | 3.6.2 (including) | 3.6.2 (including) |
| Ios_xr | Cisco | 3.6.3 (including) | 3.6.3 (including) |
| Ios_xr | Cisco | 3.7 (including) | 3.7 (including) |
| Ios_xr | Cisco | 3.7.0 (including) | 3.7.0 (including) |
| Ios_xr | Cisco | 3.7.1 (including) | 3.7.1 (including) |
| Ios_xr | Cisco | 3.7.2 (including) | 3.7.2 (including) |
| Ios_xr | Cisco | 3.7.3 (including) | 3.7.3 (including) |
| Ios_xr | Cisco | 3.8.0 (including) | 3.8.0 (including) |