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CVE-2018-0155

CVE information

Published

4 years ago

Last Modified

2 years ago

CVSSv2.0 Severity

High

CVSSv3.1 Severity

High

Impact Analysis

Description

A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729..

CVSSv2.0 Score

Severity
High
Base Score
7.8/10
Exploit Score
10/10
Access Vector
Network
Access Complexity
Low
Authentication Required
None
Impact Score
6.9/10
Confidentiality Impact
None
Availability Impact
Complete
Integrity Impact
None

CVSSv3.1 Score

Severity
High
Base Score
8.6/10
Exploit Score
3.9/10
Access Vector
Network
Access Complexity
Low
Privileges Required
None
Impact Score
4/10
Confidentiality Impact
None
Availability Impact
High
Integrity Impact
None
Scope
Changed
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:o:cisco:ios_xe:3.6\(2\)e:*:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:cisco:ios:3.6\(2\)e:*:*:*:*:*:*:*
  Yes
-
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6-e_\(k5\):-
  No
-
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6l-e_\(k10\)
  No
-
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7-e_\(k10\):
  No
-
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7l-e_\(k10\)
  No
-
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8-e_\(k10\)
  No
-
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8l-e_\(k10\
  No
-
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_9-e_\(k10\)
  No
-
cpe:2.3:h:cisco:catalyst_4500-x_series_switches_\(k10\):-:*:
  No
-
cpe:2.3:h:cisco:catalyst_4900m_switch_\(k5\):-:*:*:*:*:*:*:*
  No
-
cpe:2.3:h:cisco:catalyst_4948e_ethernet_switch_\(k5\):-:*:*:
  No
-
cpe:2.3:o:cisco:ios_xe:3.6\(2\)e:*:*:*:*:*:*:*
  Yes
-
cpe:2.3:o:cisco:ios:3.6\(2\)e:*:*:*:*:*:*:*
  Yes
-
cpe:2.3:h:rockwellautomation:allen-bradley_stratix_8300_indu
  No
-