CVE-2018-0167 : Vulnerability Insights and Analysis

Cisco IOS, IOS XE, and IOS XR are affected by Buffer Overflow vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem, potentially leading to denial of service (DoS) or unauthorized code execution. Learn more about the impact, technical details, and mitigation steps.

Understanding CVE-2018-0167

The Link Layer Discovery Protocol (LLDP) subsystem in Cisco IOS, IOS XE, and IOS XR Software is vulnerable to Buffer Overflow attacks, posing a risk of DoS and unauthorized code execution.

What is CVE-2018-0167?

Multiple Buffer Overflow vulnerabilities in the LLDP subsystem of Cisco IOS, IOS XE, and IOS XR Software could allow unauthorized adjacent attackers to trigger DoS or execute arbitrary code with elevated privileges.

The Impact of CVE-2018-0167

Unauthorized attackers in close proximity can exploit the vulnerabilities
Consequences include DoS situations and unauthorized code execution with elevated privileges

Technical Details of CVE-2018-0167

The technical aspects of the vulnerability are crucial to understanding its implications and potential risks.

Vulnerability Description

Buffer Overflow vulnerabilities in LLDP subsystem
Cisco Bug IDs associated: CSCuo17183, CSCvd73487

Affected Systems and Versions

Products: Cisco IOS, IOS XE, and IOS XR
Versions: Cisco IOS, IOS XE, and IOS XR

Exploitation Mechanism

Unauthorized attackers in close proximity can exploit the vulnerabilities
Risk of DoS or execution of unauthorized code with elevated privileges

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are essential to mitigate the risks posed by CVE-2018-0167.

Immediate Steps to Take

Apply vendor patches and updates promptly
Monitor network traffic for signs of exploitation
Restrict network access to vulnerable systems

Long-Term Security Practices

Regularly update and patch all software and firmware
Implement network segmentation and access controls

Patching and Updates

Refer to vendor advisories for specific patching instructions
Regularly check for updates and apply them promptly