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

High Nessus Plugin ID 118856

Synopsis

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

Description

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.

Solution

Apply the appropriate hotfix according to the vendor advisory.

See Also

https://support.citrix.com/article/CTX239100

Plugin Details

Severity: High

ID: 118856

File Name: citrix_xenserver_CTX239100.nasl

Version: 1.3

Type: local

Family: Misc.

Published: 2018/11/09

Updated: 2019/02/26

Dependencies: 76770

Configuration: Enable paranoid mode

Risk Information

Risk Factor: High

CVSS Score Source: CVE-2018-18883

CVSS v2.0

Base Score: 7.2

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

CVSS v3.0

Base Score: 8.8

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

Vulnerability Information

CPE: cpe:/a:citrix:xenserver

Required KB Items: Host/XenServer/version, Host/local_checks_enabled, Settings/ParanoidReport

Patch Publication Date: 2018/10/26

Vulnerability Publication Date: 2018/10/26

Reference Information

CVE: CVE-2018-18883

BID: 105817