Citrix XenServer Multiple Vulnerabilities (Foreshadow) (CTX236548)

critical Nessus Plugin ID 111789


A server virtualization platform installed on the remote host is affected by multiple vulnerabilities.


The version of Citrix XenServer running on the remote host is missing a security hotfix. It is, therefore, affected by multiple vulnerabilities including L1 Terminal Fault (L1TF) and a local code execution vulnerability.


Apply the appropriate hotfix according to the vendor advisory.

See Also

Plugin Details

Severity: Critical

ID: 111789

File Name: citrix_xenserver_CTX236548.nasl

Version: 1.5

Type: local

Family: Misc.

Published: 8/16/2018

Updated: 11/4/2019

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2018-14007


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:citrix:xenserver

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/14/2018

Vulnerability Publication Date: 8/14/2018

Reference Information

CVE: CVE-2018-14007, CVE-2018-3620, CVE-2018-3646

BID: 105080, 105110