Vulnerability Description
An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | >= 4.9.0, <= 4.11.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/105817Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1042021Third Party AdvisoryVDB Entry
- https://xenbits.xen.org/xsa/advisory-278.htmlMitigationPatchVendor Advisory
- http://www.securityfocus.com/bid/105817Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1042021Third Party AdvisoryVDB Entry
- https://xenbits.xen.org/xsa/advisory-278.htmlMitigationPatchVendor Advisory
FAQ
What is CVE-2018-18883?
CVE-2018-18883 is a vulnerability with a CVSS score of 8.8 (HIGH). An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecifie...
How severe is CVE-2018-18883?
CVE-2018-18883 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-18883?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.