CVE-2018-0480: cisco cisco ios xe software Race Condition

Vulnerability summary

CVE-2018-0480 is a medium (CVSS 6.1) Race Condition vulnerability in cisco cisco ios xe software. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 43% of scored vulnerabilities.

Timeline

1. 05-10-2018
   PublishedVulnerability first disclosed.
2. 26-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the errdisable per VLAN feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause the device to crash, leading to a denial of service (DoS) condition. The vulnerability is due to a race condition that occurs when the VLAN and port enter an errdisabled state, resulting in an incorrect state in the software. An attacker could exploit this vulnerability by sending frames that trigger the errdisable condition. A successful exploit could allow the attacker to cause the affected device to crash, leading to a DoS condition.

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.