CVE-2018-18883 Information

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 Vector

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

Reference

http://www.securityfocus.com/bid/105817 http://www.securitytracker.com/id/1042021 https://xenbits.xen.org/xsa/advisory-278.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8