CVE-2019-19313 : Security Advisory and Response

Denial of Service vulnerabilities were identified in versions 12.3 through 12.5, 12.4.3, and 12.3.6 of GitLab EE due to specific character issues affecting the creation, editing, or viewing of issues and commits.

Understanding CVE-2019-19313

This CVE involves Denial of Service vulnerabilities in GitLab EE versions 12.3 through 12.5, 12.4.3, and 12.3.6.

What is CVE-2019-19313?

GitLab EE versions mentioned were susceptible to Denial of Service attacks caused by specific character-related issues affecting issue and commit management.

The Impact of CVE-2019-19313

The vulnerabilities led to service disruptions due to difficulties in creating, editing, or viewing issues and commits in affected versions.

Technical Details of CVE-2019-19313

GitLab EE versions 12.3 through 12.5, 12.4.3, and 12.3.6 were affected by this CVE.

Vulnerability Description

Certain characters in the affected versions caused issues in managing issues and commits, resulting in Denial of Service vulnerabilities.

Affected Systems and Versions

GitLab EE versions 12.3 through 12.5
GitLab EE version 12.4.3
GitLab EE version 12.3.6

Exploitation Mechanism

The presence of specific characters in the affected versions made it impossible to create, edit, or view issues and commits, leading to service disruptions.

Mitigation and Prevention

Immediate Steps to Take:

Update GitLab EE to the latest patched version.
Monitor GitLab security advisories for any future vulnerabilities. Long-Term Security Practices:
Regularly review and update security configurations.
Conduct security training for personnel to enhance awareness.
Implement access controls and least privilege principles.
Perform regular security audits and assessments.
Backup critical data to prevent data loss.

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the Denial of Service vulnerabilities in GitLab EE versions 12.3 through 12.5, 12.4.3, and 12.3.6.