Vulnerability Description
Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a guest operating system that uses hardware task switching and allows a new task to start in VM86 mode.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | 4.0.0 |
| Citrix | Xenserver | 6.0.2 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/94470Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037341Third Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-192.htmlPatchVendor Advisory
- https://security.gentoo.org/glsa/201612-56
- https://support.citrix.com/article/CTX218775PatchThird Party Advisory
- http://www.securityfocus.com/bid/94470Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037341Third Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-192.htmlPatchVendor Advisory
- https://security.gentoo.org/glsa/201612-56
- https://support.citrix.com/article/CTX218775PatchThird Party Advisory
FAQ
What is CVE-2016-9382?
CVE-2016-9382 is a vulnerability with a CVSS score of 7.8 (HIGH). Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which allows local 32-bit x86 HVM guest OS users to gain privileges or cause a denial of service (guest OS crash) by leveraging a gues...
How severe is CVE-2016-9382?
CVE-2016-9382 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-9382?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen, Citrix Xenserver.