Date: Tue, 20 Apr 2021 19:53:53 +0200 From: Daniel Beck <ml@...kweb.net> To: oss-security@...ts.openwall.com Subject: Vulnerability in Jenkins 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 2.286 * Jenkins LTS 2.277.3 Summaries of the vulnerabilities are below. More details, severity, and attribution can be found here: https://www.jenkins.io/security/advisory/2021-04-20/ 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 --- JENKINS-65280 / CVE-2021-28165 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 2.285 and earlier, LTS 2.277.2 and earlier bundles Jetty 9.4.38 or earlier with multiple security vulnerabilities, including CVE-2021-28165. This vulnerability may allow unauthenticated attackers to cause a denial of service if Winstone-Jetty is configured to handle SSL/TLS connections.
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