CVE-2018-12066 Explained : Impact and Mitigation

BIRD Internet Routing Daemon, prior to version 1.6.4, contains a vulnerability that enables local individuals to induce a denial of service attack by depleting the stack and crashing the daemon through the use of BGP mask expressions in the birdc component.

Understanding CVE-2018-12066

This CVE entry describes a vulnerability in the BIRD Internet Routing Daemon that allows local users to trigger a denial of service attack.

What is CVE-2018-12066?

CVE-2018-12066 is a vulnerability in the BIRD Internet Routing Daemon before version 1.6.4 that can be exploited by local users to cause a denial of service by depleting the stack and crashing the daemon using BGP mask expressions in birdc.

The Impact of CVE-2018-12066

The vulnerability can lead to a denial of service attack, affecting the availability of the BIRD Internet Routing Daemon and potentially disrupting network operations.

Technical Details of CVE-2018-12066

This section provides more technical insights into the CVE-2018-12066 vulnerability.

Vulnerability Description

The vulnerability in BIRD Internet Routing Daemon before version 1.6.4 allows local users to trigger a denial of service attack by consuming the stack and crashing the daemon through BGP mask expressions in birdc.

Affected Systems and Versions

Affected System: BIRD Internet Routing Daemon
Affected Versions: Versions prior to 1.6.4

Exploitation Mechanism

The vulnerability is exploited by local users utilizing BGP mask expressions in the birdc component to deplete the stack and cause the daemon to crash.

Mitigation and Prevention

To address CVE-2018-12066 and enhance security, follow these mitigation and prevention measures:

Immediate Steps to Take

Upgrade to version 1.6.4 or later of the BIRD Internet Routing Daemon.
Monitor network traffic for any suspicious activity that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Implement the principle of least privilege to restrict access and permissions for local users.
Regularly update and patch software to mitigate known vulnerabilities and enhance overall security.

Patching and Updates

Apply patches and updates provided by the BIRD Internet Routing Daemon to address the vulnerability and improve system security.