CVE-2018-0480: Cisco IOS XE Software Errdisable Denial of Service Vulnerability
First published: Fri Oct 05 2018(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XE Software | =3.6\(5\) |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-0480?
CVE-2018-0480 is classified as a high-severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2018-0480?
To mitigate CVE-2018-0480, update your Cisco IOS XE Software to a version that addresses the vulnerability.
What impact does CVE-2018-0480 have on devices?
CVE-2018-0480 can lead to a denial of service condition, causing affected devices to crash.
Who is affected by CVE-2018-0480?
CVE-2018-0480 affects devices running Cisco IOS XE Software version 3.6(5) and possibly others.
Is authentication required to exploit CVE-2018-0480?
No, CVE-2018-0480 can be exploited by an unauthenticated, adjacent attacker.
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