Total vulnerabilities in the database
A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific, malformed attribute to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit this vulnerability, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
| Software | From | Fixed in |
|---|---|---|
| cisco / ios_xr | 6.0.1 | 6.0.1.x |
| cisco / ios_xr | 6.0.2 | 6.0.2.x |
| cisco / ios_xr | 6.1.1 | 6.1.1.x |
| cisco / ios_xr | 6.1.2 | 6.1.2.x |
| cisco / ios_xr | 6.1.3 | 6.1.3.x |
| cisco / ios_xr | 6.1.4 | 6.1.4.x |
| cisco / ios_xr | 6.2.1 | 6.2.1.x |
| cisco / ios_xr | 6.2.2 | 6.2.2.x |
| cisco / ios_xr | 6.2.3 | 6.2.3.x |
| cisco / ios_xr | 6.4.1 | 6.4.1.x |