CVE-2022-0538 DoS vulnerability in bundled XStream library in Jenkins Core

What is CVE-2022-0538?

CVE-2022-0538 is a high-severity unsafe deserialization vulnerability in Jenkins Jenkins, published on 9 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Jenkins 2.333 and earlier, LTS 2.319.2 and earlier defines custom XStream converters that have not been updated to apply the protections for the vulnerability CVE-2021-43859 and allow unconstrained resource usage.

Weakness: CWE-502

Which versions are affected by CVE-2022-0538?

5 open source packages ship an affected version, including org.jenkins-ci.main:jenkins-core and jenkins. It affects 1 product.

Products include Jenkins Jenkins.

How do I fix CVE-2022-0538?

Upgrade org.jenkins-ci.main:jenkins-core to a fixed version for your release line: 2.319.3 or 2.334.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2022-0538 being exploited?

There is no known exploitation of CVE-2022-0538 in the wild and no public exploit code.

Other vulnerabilities in Jenkins Jenkins

• CVE-2024-23897 Jenkins Command Line Interface (CLI) Path Traversal Exploited Critical 9.8
• CVE-2018-1000861 Jenkins Stapler Web Framework Deserialization of Untrusted Data Exploited Critical 9.8
• CVE-2017-1000353 Jenkins Remote Code Execution Exploited Critical 9.8
• CVE-2015-5317 Jenkins User Interface (UI) Information Disclosure Exploited High 7.5
• CVE-2021-21690 Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins Critical 9.8

All Jenkins Jenkins vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-jenkins-2022-0538, GHSA-34wx-x2w9-vqm3.