Description
Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation.
Metrics
CVSS 3.0 8.2/10
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://support.citrix.com/article/CTX216071Third Party Advisory
- http://www.securityfocus.com/bid/92865
- http://www.securitytracker.com/id/1036752Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-186.htmlPatch, Vendor Advisory
- http://xenbits.xen.org/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patchPatch, Vendor Advisory
- https://security.gentoo.org/glsa/201611-09
- http://support.citrix.com/article/CTX216071Third Party Advisory
- http://www.securityfocus.com/bid/92865
- http://www.securitytracker.com/id/1036752Third Party Advisory, VDB Entry
- http://xenbits.xen.org/xsa/advisory-186.htmlPatch, Vendor Advisory
- http://xenbits.xen.org/xsa/xsa186-0001-x86-emulate-Correct-boundary-interactions-of-emulate.patchPatch, Vendor Advisory
- https://security.gentoo.org/glsa/201611-09
Timeline
- Published
- Sep 21, 2016
- Last modified
- Jun 17, 2026
- NVD status
- Modified