The MethodClosure class in runtime/MethodClosure.java in Apache Groovy 1.7.0 through 2.4.3 allows remote attackers to execute arbitrary code or cause a denial of service via a crafted serialized object.
https://www.tenable.com/blog/oracle-critical-patch-update-for-april-contains-297-fixes
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://www.oracle.com/security-alerts/cpuapr2020.html
https://security.netapp.com/advisory/ntap-20160623-0001/
https://security.gentoo.org/glsa/201610-01
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05324755
https://access.redhat.com/errata/RHSA-2017:2596
https://access.redhat.com/errata/RHSA-2017:2486
https://access.redhat.com/errata/RHSA-2016:1376
http://www.zerodayinitiative.com/advisories/ZDI-15-365/
http://www.securitytracker.com/id/1034815
http://www.securityfocus.com/bid/91787
http://www.securityfocus.com/bid/75919
http://www.securityfocus.com/archive/1/536012/100/0/threaded
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
http://rhn.redhat.com/errata/RHSA-2016-0066.html
http://packetstormsecurity.com/files/132714/Apache-Groovy-2.4.3-Code-Execution.html