Citrix XenServer Nested VT-x Instruction Guest-to-Host DoS (CTX239100)

Medium Nessus Plugin ID 118856


A server virtualization platform installed on the remote host is
missing a security patch.


The version of Citrix XenServer running on the remote host is missing
a security hotfix. It is, therefore, affected by by a guest-to-host
denial of service vulnerability.


Apply the appropriate hotfix according to the vendor advisory.

See Also

Plugin Details

Severity: Medium

ID: 118856

File Name: citrix_xenserver_CTX239100.nasl

Version: 1.2

Type: local

Family: Misc.

Published: 2018/11/09

Modified: 2018/11/29

Dependencies: 76770

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2018-18883

CVSS v2.0

Base Score: 4.7

Vector: CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:C

CVSS v3.0

Base Score: 7.1

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

Vulnerability Information

CPE: cpe:/a:citrix:xenserver

Patch Publication Date: 2018/10/26

Vulnerability Publication Date: 2018/10/26

Reference Information

CVE: CVE-2018-18883

BID: 105817