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List:       oss-security
Subject:    [oss-security] Vulnerability in Jenkins
From:       Daniel Beck <ml () beckweb ! net>
Date:       2020-08-17 14:09:12
Message-ID: D2B3C916-4B3F-4971-A6CE-979187CB00EA () beckweb ! net
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Jenkins is an open source automation server which enables developers around
the world to reliably build, test, and deploy their software.

The following releases contain fixes for security vulnerabilities:

* Jenkins 2.243
* Jenkins LTS 2.235.5


Summaries of the vulnerabilities are below. More details, severity, and
attribution can be found here:
https://www.jenkins.io/security/advisory/2020-08-17/?

We provide advance notification for security updates on this mailing list:
https://groups.google.com/d/forum/jenkinsci-advisories

If you discover security vulnerabilities in Jenkins, please report them as
described here:
https://www.jenkins.io/security/#reporting-vulnerabilities

---

SECURITY-1983 / CVE-2019-17638
Jenkins bundles Winstone-Jetty, a wrapper around Jetty, to act as HTTP and
servlet server when started using `java -jar jenkins.war`. This is how
Jenkins is run when using any of the installers or packages, but not when
run using servlet containers such as Tomcat.

Jenkins 2.224 through 2.242 and LTS 2.222.1 through 2.235.4 bundles Jetty
9.4.27 with the security vulnerability CVE-2019-17638. This vulnerability
may allow unauthenticated attackers to obtain HTTP response headers that
may include sensitive data intended for another user.

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