VMware vCenter Server 5.5.x / 6.0.x / 6.5.x / 6.7.x Speculative Execution Side Channel Vulnerability (Foreshadow) (VMSA-2018-0020)

medium Nessus Plugin ID 111760
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VPR Score: 5.2


A virtualization management application installed on the remote host is affected by a speculative execution side channel vulnerability.


The version of VMware vCenter Server installed on the remote host is 5.5.x prior to 5.5u3j, 6.0.x prior to 6.0u3h, 6.5.x prior to 6.5u2c, or 6.7.x prior to 6.7.0d. It is, therefore, affected by a speculative execution side channel attack known as L1 Terminal Fault (L1TF). An attacker who successfully exploited L1TF may be able to read privileged data across trust boundaries.


Upgrade to the version, or later, referenced in the vendor advisory.

See Also



Plugin Details

Severity: Medium

ID: 111760

File Name: vmware_vcenter_vmsa-2018-0020.nasl

Version: 1.12

Type: remote

Family: Misc.

Published: 8/15/2018

Updated: 4/27/2020

Dependencies: vmware_vcenter_detect.nbin

Risk Information

Risk Factor: Medium

VPR Score: 5.2

CVSS Score Source: CVE-2018-3646

CVSS v2.0

Base Score: 4.7

Temporal Score: 3.5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 5.6

Temporal Score: 4.9

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

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

Vulnerability Information

CPE: cpe:/a:vmware:vcenter_server

Required KB Items: Host/VMware/vCenter, Host/VMware/version, Host/VMware/release

Exploit Ease: No known exploits are available

Patch Publication Date: 8/14/2018

Vulnerability Publication Date: 8/14/2018

Reference Information

CVE: CVE-2018-3646

BID: 105080

VMSA: 2018-0020