ESXi 5.5 / 6.0 / 6.5 / Hypervisor-Assisted Guest Remediation for Speculative Execution (VMSA-2018-0004) (Spectre) (remote check)

Medium Nessus Plugin ID 105782


The remote VMware ESXi host is missing a security patch which enables hardware support for branch target mitigation.


The remote VMware ESXi host is version 5.5, 6.0, or 6.5 and is missing a security patch. It is, therefore, missing security updates that add hypervisor-assisted guest remediation for a speculative execution vulnerability (CVE-2017-5715). These updates will allow guest operating systems to use hardware support for branch target mitigation and will require guest OS security updates as detailed in VMware Knowledge Base article 52085.

Note that hypervisor-specific remediation's for this vulnerability were released as part of VMSA-2018-0002.


Apply the appropriate patch as referenced in the vendor advisory.

See Also

Plugin Details

Severity: Medium

ID: 105782

File Name: vmware_esxi_VMSA-2018-0004.nasl

Version: $Revision: 1.4 $

Type: remote

Family: Misc.

Published: 2018/01/12

Modified: 2018/01/16

Dependencies: 57396

Risk Information

Risk Factor: Medium


Base Score: 4.7

Temporal Score: 4.5

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

Temporal Vector: CVSS2#E:F/RL:ND/RC:ND


Base Score: 5.6

Temporal Score: 5.4

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

Temporal Vector: CVSS:3.0/E:F/RL:X/RC:X

Vulnerability Information

CPE: cpe:/o:vmware:esxi

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/01/09

Vulnerability Publication Date: 2018/01/03

Reference Information

CVE: CVE-2017-5715

BID: 102376

OSVDB: 171897

VMSA: 2018-0004

IAVA: 2018-A-0020