CVE Vulnerability

CVE-2018-7540

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.

4.9 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2 / Impact : 4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://xenbits.xen.org/xsa/advisory-252.html Vendor Advisory
https://www.debian.org/security/2018/dsa-4131 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html Third Party Advisory
https://support.citrix.com/article/CTX232655
http://www.securityfocus.com/bid/103174
https://support.citrix.com/article/CTX232096
http://www.securitytracker.com/id/1040773
https://security.gentoo.org/glsa/201810-06
https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html
Configurations

Configuration 1

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Information

Published : 2018-02-27 07:29

Updated : 2018-11-13 11:29

NVD link : CVE-2018-7540

Mitre link : CVE-2018-7540

Products Affected
No products.
CWE
CWE-400