Vulnerability Description
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Xen | Xen | >= 4.11.0, <= 4.11.1 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
- http://www.securityfocus.com/bid/106182Third Party AdvisoryVDB Entry
- https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.debian.org/security/2019/dsa-4369Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-280.htmlMitigationPatchVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
- http://www.securityfocus.com/bid/106182Third Party AdvisoryVDB Entry
- https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.debian.org/security/2019/dsa-4369Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-280.htmlMitigationPatchVendor Advisory
FAQ
What is CVE-2018-19966?
CVE-2018-19966 is a vulnerability with a CVSS score of 8.8 (HIGH). An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for ...
How severe is CVE-2018-19966?
CVE-2018-19966 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-2018-19966?
Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen, Debian Debian Linux.