Total vulnerabilities in the database
A vulnerability in the Forwarding Information Base (FIB) code of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, network attacker to cause a denial of service (DoS) condition. The vulnerability is due to a limitation in the way the FIB is internally representing recursive routes. An attacker could exploit this vulnerability by injecting routes into the routing protocol that have a specific recursive pattern. The attacker must be in a position on the network that provides the ability to inject a number of recursive routes with a specific pattern. An exploit could allow the attacker to cause an affected device to reload, creating a DoS condition. Cisco Bug IDs: CSCva91655.
| Software | From | Fixed in |
|---|---|---|
| cisco / ios_xe | - | 15.5\(3\)s5 |
| cisco / ios_xe | - | 15.5\(3\)m5 |
| cisco / ios_xe | - | 15.4\(3\)s7 |
| cisco / ios_xe | - | 15.4\(2\)s1 |
| cisco / ios_xe | - | 15.4\(1\)s1 |
| cisco / ios_xe | - | 15.4\(1\)s0a |
| cisco / ios_xe | - | 15.2\(5\)e1 |
| cisco / ios_xe | - | 15.2\(4\)e5 |
| cisco / ios_xe | - | 15.2\(2\)e1 |
| cisco / ios_xe | - | 15.2\(1\)e1 |