CVE-2015-4105

Xen 3.3.x through 4.5.x enables logging for PCI MSI-X pass-through error messages, which allows local x86 HVM guests to cause a denial of service host disk consumption via certain invalid operations...

CVE-2014-7156

The x86emulate function in arch/x86/x86emulate/x86emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service guest crash via unspecified vectors...

Information leak through fbld instruction emulation

ISSUE DESCRIPTION The emulation of the fbld instruction which is used during I/O emulation uses the wrong variable for the source effective address. As a result, the actual address used is an uninitialised bit pattern from the stack. A malicious guest might be able to find out information about t...