cisco-sa-20180328-lldp: Cisco IOS, IOS XE, and IOS XR Software Link Layer Discovery Protocol Buffer Overflow Vulnerabilities

Published Mar 28, 2018
·
Updated

Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-lldp This advisory is part of the March 28, 2018, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 20 Cisco Security Advisories that describe 22 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: March 2018 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.

Credit

These vulnerabilities were found during the resolution(a Cisco TAC support case)

Affected Software

3 affected components
Cisco IOS Software
Cisco IOS XE Software
Cisco IOS XR Software

Event History

Mar 28, 2018
Advisory Published
04:00 PM
Data Sourced
04:00 PM
DescriptionSeverityWeaknessAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of cisco-sa-20180328-lldp?

The severity of cisco-sa-20180328-lldp is high due to the potential for denial of service or arbitrary code execution.

2

How do I fix cisco-sa-20180328-lldp?

To fix cisco-sa-20180328-lldp, apply the recommended software updates provided by Cisco for IOS, IOS XE, and IOS XR Software.

3

What vulnerabilities are associated with cisco-sa-20180328-lldp?

cisco-sa-20180328-lldp involves multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem.

4

Can cisco-sa-20180328-lldp be exploited remotely?

cisco-sa-20180328-lldp requires an adjacent attacker to exploit the vulnerabilities, meaning it cannot be exploited remotely.

5

What types of devices are affected by cisco-sa-20180328-lldp?

Devices running Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software are affected by cisco-sa-20180328-lldp.

Contact

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