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CVE-2018-0189
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
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..
CVSSv2.0 Score
- Severity
- High
- Base Score
- 7.1/10
- Exploit Score
- 8.6/10
- Access Vector
- Network
- Access Complexity
- Medium
- Authentication Required
- None
- Impact Score
- 6.9/10
- Confidentiality Impact
- None
- Availability Impact
- Complete
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- Medium
- Base Score
- 5.3/10
- Exploit Score
- 1.6/10
- Access Vector
- Network
- Access Complexity
- High
- Privileges Required
- Low
- Impact Score
- 3.6/10
- Confidentiality Impact
- None
- Availability Impact
- High
- Integrity Impact
- None
- Scope
- Unchanged
- User Interaction
- None
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.5\(3\)s5 | |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.5\(3\)m5 | |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.4\(3\)s7 | |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.4\(2\)s1 | |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.4\(1\)s1 | |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.4\(1\)s0a | |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.2\(5\)e1 | |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.2\(4\)e5 | |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.2\(2\)e1 | |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* |
Yes
|
- | 15.2\(1\)e1 |