CVE-2018-19963 — HIGH (7.8)

Vulnerability Description

An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.

CVSS Score

7.8

HIGH

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Xen	Xen	4.11.0

Related Weaknesses (CWE)

CWE-617

References

http://www.securityfocus.com/bid/106182Third Party AdvisoryVDB Entry
https://xenbits.xen.org/xsa/advisory-276.htmlPatchThird Party Advisory
http://www.securityfocus.com/bid/106182Third Party AdvisoryVDB Entry
https://xenbits.xen.org/xsa/advisory-276.htmlPatchThird Party Advisory

FAQ

What is CVE-2018-19963?

CVE-2018-19963 is a vulnerability with a CVSS score of 7.8 (HIGH). An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for exter...

How severe is CVE-2018-19963?

CVE-2018-19963 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-2018-19963?

Check the references section above for vendor advisories and patch information. Affected products include: Xen Xen.