Jenkins 2.218 and earlier, LTS 2.204.1 and earlier used a non-constant time comparison function when validating an HMAC. References: https://jenkins.io/security/advisory/2020-01-29/#SECURITY-1660 http://www.openwall.com/lists/oss-security/2020/01/29/1
Created jenkins tracking bugs for this issue: Affects: fedora-all [bug 1797077]
"Any security advisory related updates to Jenkins core or the plugins we include in the OpenShift Jenkins master image will only occur in the v3.11 and v4.x branches of this repository." https://github.com/openshift/jenkins/blob/master/README.md#jenkins-security-advisories-the-master-image-from-this-repository-and-the-oc-binary
This bug has been fixed by https://errata.devel.redhat.com/advisory/50532 that brought Jenkins 2.204.2