CVE-2018-7540

CVE Details

Release Date:	2018-02-27
Impact:	Moderate	What is this?

Description

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

See more information about CVE-2018-7540 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	6.5
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Changed
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle VM version 3.2 (xen)	OVMSA-2018-0272	2018-11-13
Oracle VM version 3.3 (xen)	OVMSA-2018-0271	2018-11-13
Oracle VM version 3.4 (xen)	OVMSA-2018-0020	2018-03-02