CVE-2018-0155
Summary
| CVE | CVE-2018-0155 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2018-03-28 22:29:00 UTC |
| Updated | 2020-09-04 18:24:00 UTC |
| 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. |
Risk And Classification
EPSS: 0.145030000 probability, percentile 0.944200000 (date 2026-04-02)
CISA KEV: Listed on 2022-03-03; due 2022-03-17; ransomware use Unknown
Problem Types: CWE-755
CISA Known Exploited Vulnerability
| Vendor | Cisco |
|---|---|
| Product | Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches |
| Name | Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability |
| Required Action | Apply updates per vendor instructions. |
| Notes | https://nvd.nist.gov/vuln/detail/CVE-2018-0155 |
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Rockwell Automation Stratix Industrial Managed Ethernet Switch | ICS-CERT | MISC | ics-cert.us-cert.gov | Third Party Advisory, US Government Resource |
| Cisco IOS and IOS XE Software CVE-2018-0155 Denial of Service Vulnerability | BID | www.securityfocus.com | Third Party Advisory, VDB Entry |
| Cisco IOS and IOS XE Software Bidirectional Forwarding Detection Denial of Service Vulnerability | CONFIRM | tools.cisco.com | Vendor Advisory |
| Cisco Catalyst 4500 and 4500-X Series Switches Bidirectional Forwarding Detection Error Handling Bug Lets Remote Users Cause the Target 'iosd' Service to Crash - SecurityTracker | SECTRACK | www.securitytracker.com | Third Party Advisory, VDB Entry |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 590339 Rockwell Automation Stratix Industrial Managed Ethernet Switch Multiple Vulnerabilities (ICSA-18-107-05)