Description
A user-supplied regular expression in Jenkins Build Failure Analyzer Plugin 1.24.1 and earlier was processed in a way that wasn't interruptible, allowing attackers to have Jenkins evaluate a regular expression without the ability to interrupt this process.
Remediation
References
https://jenkins.io/security/advisory/2019-12-17/#SECURITY-1651
http://www.openwall.com/lists/oss-security/2019/12/17/1