CVE-2022-36055 : What You Need to Know
Learn about CVE-2022-36055, a Denial of Service vulnerability in Helm versions prior to 3.9.4, allowing attackers to trigger an out-of-memory panic. Read about its impact, affected systems, and mitigation steps.
Helm is a tool for managing Charts, which are packages of pre-configured Kubernetes resources. A Denial of Service vulnerability was identified in Helm versions prior to 3.9.4, allowing attackers to cause an out-of-memory panic. This issue has been resolved in version 3.9.4.
Understanding CVE-2022-36055
This CVE involves a vulnerability in Helm that could lead to a Denial of Service attack due to a memory issue.
What is CVE-2022-36055?
The vulnerability in Helm versions prior to 3.9.4 allows attackers to trigger an out-of-memory panic, resulting in a Denial of Service condition when parsing user-supplied input.
The Impact of CVE-2022-36055
The impact of this vulnerability is categorized as MEDIUM, with a CVSS base score of 6.5. It could lead to a significant memory usage issue and cause a panic that affects the Helm client.
Technical Details of CVE-2022-36055
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability stems from input to functions in the strvals package, which can lead to an out-of-memory panic due to the creation of large array data structures.
Affected Systems and Versions
Helm versions prior to 3.9.4 are affected by this vulnerability, potentially exposing systems to Denial of Service attacks.
Exploitation Mechanism
Attackers can exploit this vulnerability by providing malicious input to the Helm SDK, triggering a panic that cannot be recovered from, resulting in a Denial of Service condition.
Mitigation and Prevention
To address CVE-2022-36055 and prevent potential attacks, users should take the following steps.
Immediate Steps to Take
Update to version 3.9.4 or later to mitigate the vulnerability and prevent the possibility of a Denial of Service attack.
Long-Term Security Practices
Incorporate secure coding practices and regularly update Helm to ensure that known vulnerabilities are addressed promptly.
Patching and Updates
Regularly monitor for security advisories and update Helm to the latest version to protect against potential threats.