The Windows Graphics Device Interface (GDI) in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709, Windows Server 2016 and Windows Server, version 1709 allows an elevation of privilege vulnerability due to the way objects are handled in memory, aka "Windows GDI Elevation of Privilege Vulnerability". This CVE is unique from CVE-2018-0815 and CVE-2018-0816.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0817