Open Enterprise Server 2015 Support Pack 1 (OES 2015 SP1) (OES2015.1)
Open Enterprise Server 2018 (OES 2018)Open Enterprise Server 2018 Support Pack 1 (OES 2018 SP1) (OES2018.1)
This affects OES versions OES 2015 SP1, OES 2018, and OES 2018 SP1.
A code update that addresses the issue has been released as:
OES2018 SP1 - Update 1 Security 18 or later
OES2018 - Update 7 Security 16 or later
OES2015 SP1 - Update 34 Security 4 or later
Older versions of Open Enterprise Server may be affected but were not tested as they are out of support.
These servers need to be updated to a supported code level before they can benefit of this fix.