Jenkins includes a feature that shows a JVM memory usage chart for the Jenkins controller.
Access to the chart in Jenkins 2.218 and earlier, LTS 2.204.1 and earlier requires no permissions beyond the general Overall/Read, allowing users who are not administrators to view JVM memory usage data.
Jenkins 2.219, LTS 2.204.2 now requires Overall/Administer permissions to view the JVM memory usage chart.
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-2104
- https://access.redhat.com/errata/RHBA-2020:0402
- https://access.redhat.com/errata/RHBA-2020:0675
- https://access.redhat.com/errata/RHSA-2020:0681
- https://access.redhat.com/errata/RHSA-2020:0683
- https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1650
- http://www.openwall.com/lists/oss-security/2020/01/29/1
- https://github.com/advisories/GHSA-r78q-qgx6-64pp