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.
2017-01-26T15:59:00.237
2025-04-20T01:37:25.860
Deferred
CVSSv3.0: 5.5 (MEDIUM)
AV:L/AC:L/Au:N/C:N/I:N/A:P
3.9
2.9
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Operating System | xen | xen | 4.6.0 | Yes |
Operating System | xen | xen | 4.6.1 | Yes |
Operating System | xen | xen | 4.6.3 | Yes |
Operating System | xen | xen | 4.6.4 | Yes |
Operating System | xen | xen | 4.7.0 | Yes |
Operating System | xen | xen | 4.7.1 | Yes |
Operating System | xen | xen | 4.8.0 | Yes |
Application | citrix | xenserver | 6.0.2 | Yes |
Application | citrix | xenserver | 6.2.0 | Yes |
Application | citrix | xenserver | 6.5 | Yes |
Application | citrix | xenserver | 7.0 | Yes |