CVE-2017-1000355 : What You Need to Know

Jenkins versions prior to 2.56 and 2.46.1 LTS and earlier are susceptible to a vulnerability that can lead to an XStream: Java crash when attempting to instantiate void/Void.

Understanding CVE-2017-1000355

This CVE involves a security issue in Jenkins that can result in a Java crash under specific conditions.

What is CVE-2017-1000355?

CVE-2017-1000355 is a vulnerability found in Jenkins versions before 2.56 and 2.46.1 LTS and earlier, which allows for an XStream: Java crash when trying to instantiate void/Void.

The Impact of CVE-2017-1000355

The vulnerability can be exploited to cause a Java crash, potentially leading to denial of service or other security implications.

Technical Details of CVE-2017-1000355

Jenkins is affected by a specific vulnerability that can result in a Java crash when handling void/Void instantiation.

Vulnerability Description

The vulnerability in Jenkins versions prior to 2.56 and 2.46.1 LTS and earlier allows for an XStream: Java crash during attempts to instantiate void/Void.

Affected Systems and Versions

Jenkins versions before 2.56
Jenkins 2.46.1 LTS and earlier

Exploitation Mechanism

The vulnerability can be exploited by triggering the instantiation of void/Void, leading to a Java crash.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2017-1000355.

Immediate Steps to Take

Update Jenkins to a non-vulnerable version.
Monitor for any unusual Java crashes or system instability.

Long-Term Security Practices

Regularly update Jenkins and other software components.
Implement proper input validation to prevent malicious data manipulation.
Stay informed about security advisories and patches.
Conduct security audits and assessments periodically.

Patching and Updates

Apply patches provided by Jenkins to address the vulnerability.
Keep Jenkins and related software up to date to prevent future security issues.