CVE-2018-12558 : Security Advisory and Response

CVE-2018-12558 pertains to a vulnerability in the Email::Address module's parse() method in Perl versions up to 1.909. This vulnerability allows for Algorithmic complexity attacks on specific input, leading to a Denial of Service (DoS) when specially crafted input is provided.

Understanding CVE-2018-12558

This section provides insights into the nature and impact of the CVE-2018-12558 vulnerability.

What is CVE-2018-12558?

The vulnerability in the Email::Address module's parse() method for Perl versions up to 1.909 allows for Algorithmic complexity attacks on specific input, resulting in a Denial of Service. The issue occurred when specially crafted input contained 30 form-field characters ("\f").

The Impact of CVE-2018-12558

The vulnerability can be exploited to launch DoS attacks by providing specially crafted input, potentially disrupting the normal operation of affected systems.

Technical Details of CVE-2018-12558

Explore the technical aspects of CVE-2018-12558 to understand its implications and scope.

Vulnerability Description

The parse() method in the Email::Address module through 1.909 for Perl is vulnerable to Algorithmic complexity on specially prepared input, leading to Denial of Service. Prepared special input that caused this problem contained 30 form-field characters ("\f").

Affected Systems and Versions

Product: N/A
Vendor: N/A
Versions: Up to Perl 1.909

Exploitation Mechanism

The vulnerability can be exploited by providing specially crafted input containing 30 form-field characters ("\f"), triggering Algorithmic complexity attacks that result in a Denial of Service.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2018-12558 and prevent potential exploitation.

Immediate Steps to Take

Update the Perl Email::Address module to a non-vulnerable version.
Implement input validation mechanisms to filter out potentially malicious input.

Long-Term Security Practices

Regularly monitor and update software components to address known vulnerabilities.
Conduct security assessments and audits to identify and remediate weaknesses in the system.

Patching and Updates

Stay informed about security advisories and patches released by Perl and relevant vendors.
Apply patches promptly to ensure that systems are protected against known vulnerabilities.