Learn about CVE-2022-1954, a critical vulnerability in GitLab versions prior to 14.10.5, 15.0.4, and 15.1.1 allowing denial of service attacks through crafted web server responses.
A Regular Expression Denial of Service vulnerability in GitLab versions prior to 14.10.5, 15.0.4, and 15.1.1 allows attackers to render a GitLab instance inaccessible via crafted web server response headers.
Understanding CVE-2022-1954
This section provides insights into the vulnerability, its impact, affected systems, and mitigation strategies.
What is CVE-2022-1954?
CVE-2022-1954 is a Regular Expression Denial of Service vulnerability in GitLab CE/EE versions affecting critical components.
The Impact of CVE-2022-1954
The vulnerability enables attackers to disrupt the availability of GitLab instances, potentially leading to denial of service attacks.
Technical Details of CVE-2022-1954
Let's dive into the specifics of this vulnerability.
Vulnerability Description
The issue lies in how GitLab handles web server response headers, allowing malicious actors to exploit this behavior.
Affected Systems and Versions
GitLab versions >=1.0.2 and <14.10.5, >=15.0 and <15.0.4, and >=15.1 and <15.1.1 are impacted by this vulnerability.
Exploitation Mechanism
By sending specially crafted web server response headers, threat actors can trigger a denial of service condition in GitLab servers.
Mitigation and Prevention
Discover the necessary steps to secure your systems post CVE-2022-1954.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Stay informed about security advisories from GitLab and promptly apply patches to safeguard against known vulnerabilities.