VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions (aka SVM) allows local HVM guest OS users to cause a denial of service (hypervisor crash) by leveraging a missing NULL pointer check.
The product dereferences a pointer that it expects to be valid but is NULL.
Link | Tags |
---|---|
http://www.securityfocus.com/bid/95026 | vdb entry third party advisory |
http://xenbits.xen.org/xsa/advisory-203.html | patch vendor advisory |
https://support.citrix.com/article/CTX219378 | third party advisory patch |
http://www.securitytracker.com/id/1037518 | vdb entry third party advisory |