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CVE-2018-0155

Severity CVSS v4.0:
Pending analysis
Type:
CWE-388 Error Handling
Publication date:
28/03/2018
Last modified:
27/01/2025

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.60 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
8.60
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios:3.6\(2\)e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6\(2\)e:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500-x_series_switches_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6-e_\(k5\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6l-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7l-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8l-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_9-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4900m_switch_\(k5\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4948e_ethernet_switch_\(k5\):-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:3.6\(2\)e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6\(2\)e:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:allen-bradley_stratix_8300_industrial_managed_ethernet_switch:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools