The remoting module in Jenkins before 2.32 and LTS before 2.19.3 allows remote attackers to execute arbitrary code via a crafted serialized Java object, which triggers an LDAP query to a third-party server.
https://www.exploit-db.com/exploits/44642/
https://www.cloudbees.com/jenkins-security-advisory-2016-11-16
https://wiki.jenkins-ci.org/display/SECURITY/Jenkins+Security+Advisory+2016-11-16
https://groups.google.com/forum/#%21original/jenkinsci-advisories/-fc-w9tNEJE/LZ7EOS0fBgAJ
https://groups.google.com/forum/#%21original/jenkinsci-advisories/-fc-w9tNEJE/GRvEzWoJBgAJ
http://www.securityfocus.com/bid/94281