Description
It was discovered that the ElytronManagedThread in Wildfly's Elytron subsystem in versions from 11 to 16 stores a SecurityIdentity to run the thread as. These threads do not necessarily terminate if the keep alive time has not expired. This could allow a shared thread to use the wrong security identity when executing.
Remediation
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3894
https://access.redhat.com/errata/RHSA-2019:1108
https://access.redhat.com/errata/RHSA-2019:1107
https://access.redhat.com/errata/RHSA-2019:1106
https://access.redhat.com/errata/RHSA-2019:1140
https://security.netapp.com/advisory/ntap-20190517-0004/
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