| Description: | The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier,
as used in Citrix XenServer 6.0.2 and earlier and other products;
Oracle Solaris 11 and earlier; illumos before r13724; Joyent SmartOS
before 20120614T184600Z; FreeBSD before 9.0-RELEASE-p3; NetBSD 6.0
Beta and earlier; Microsoft Windows Server 2008 R2 and R2 SP1 and
Windows 7 Gold and SP1; and possibly other operating systems, when
running on an Intel processor, incorrectly uses the sysret path in
cases where a certain address is not a canonical address, which allows
local users to gain privileges via a crafted application. NOTE:
because this issue is due to incorrect use of the Intel specification,
it should have been split into separate identifiers; however, there
was some value in preserving the original mapping of the multi-
codebase coordinated-disclosure effort to a single identifier.
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