medium
6.5
CWE
476
Advisory Published
Updated

CVE-2018-6972: Null Pointer Dereference

First published: Wed Jul 25 2018(Updated: )

VMware ESXi (6.7 before ESXi670-201806401-BG, 6.5 before ESXi650-201806401-BG, 6.0 before ESXi600-201806401-BG and 5.5 before ESXi550-201806401-BG), Workstation (14.x before 14.1.2), and Fusion (10.x before 10.1.2) contain a denial-of-service vulnerability due to NULL pointer dereference issue in RPC handler. Successful exploitation of this issue may allow attackers with normal user privileges to crash their VMs.

Credit: security@vmware.com

Affected SoftwareAffected VersionHow to fix
VMware Workstation>=14.0<14.1.2
VMware Fusion Pro>=10.0<10.1.2
Apple iOS and macOS
VMware ESXi=5.5
VMware ESXi=5.5-1
VMware ESXi=5.5-2
VMware ESXi=5.5-3a
VMware ESXi=5.5-3b
VMware ESXi=5.5-550-20170901001s
VMware ESXi=5.5-550-20170904001
VMware ESXi=6.0
VMware ESXi=6.0-1
VMware ESXi=6.0-1a
VMware ESXi=6.0-1b
VMware ESXi=6.0-2
VMware ESXi=6.0-3
VMware ESXi=6.0-3a
VMware ESXi=6.0-600-201504401
VMware ESXi=6.0-600-201505401
VMware ESXi=6.0-600-201507101
VMware ESXi=6.0-600-201507102
VMware ESXi=6.0-600-201507401
VMware ESXi=6.0-600-201507402
VMware ESXi=6.0-600-201507403
VMware ESXi=6.0-600-201507404
VMware ESXi=6.0-600-201507405
VMware ESXi=6.0-600-201507406
VMware ESXi=6.0-600-201507407
VMware ESXi=6.0-600-201509101
VMware ESXi=6.0-600-201509102
VMware ESXi=6.0-600-201509201
VMware ESXi=6.0-600-201509202
VMware ESXi=6.0-600-201509203
VMware ESXi=6.0-600-201509204
VMware ESXi=6.0-600-201509205
VMware ESXi=6.0-600-201509206
VMware ESXi=6.0-600-201509207
VMware ESXi=6.0-600-201509208
VMware ESXi=6.0-600-201509209
VMware ESXi=6.0-600-201509210
VMware ESXi=6.0-600-201510401
VMware ESXi=6.0-600-201511401
VMware ESXi=6.0-600-201601101
VMware ESXi=6.0-600-201601102
VMware ESXi=6.0-600-201601401
VMware ESXi=6.0-600-201601402
VMware ESXi=6.0-600-201601403
VMware ESXi=6.0-600-201601404
VMware ESXi=6.0-600-201601405
VMware ESXi=6.0-600-201602401
VMware ESXi=6.0-600-201603101
VMware ESXi=6.0-600-201603102
VMware ESXi=6.0-600-201603201
VMware ESXi=6.0-600-201603202
VMware ESXi=6.0-600-201603203
VMware ESXi=6.0-600-201603204
VMware ESXi=6.0-600-201603205
VMware ESXi=6.0-600-201603206
VMware ESXi=6.0-600-201603207
VMware ESXi=6.0-600-201603208
VMware ESXi=6.0-600-201605401
VMware ESXi=6.0-600-201608101
VMware ESXi=6.0-600-201608401
VMware ESXi=6.0-600-201608402
VMware ESXi=6.0-600-201608403
VMware ESXi=6.0-600-201608404
VMware ESXi=6.0-600-201608405
VMware ESXi=6.0-600-201610410
VMware ESXi=6.0-600-201611401
VMware ESXi=6.0-600-201611402
VMware ESXi=6.0-600-201611403
VMware ESXi=6.0-600-201702101
VMware ESXi=6.0-600-201702102
VMware ESXi=6.0-600-201702201
VMware ESXi=6.0-600-201702202
VMware ESXi=6.0-600-201702203
VMware ESXi=6.0-600-201702204
VMware ESXi=6.0-600-201702205
VMware ESXi=6.0-600-201702206
VMware ESXi=6.0-600-201702207
VMware ESXi=6.0-600-201702208
VMware ESXi=6.0-600-201702209
VMware ESXi=6.0-600-201702210
VMware ESXi=6.0-600-201702211
VMware ESXi=6.0-600-201702212
VMware ESXi=6.0-600-201703401
VMware ESXi=6.0-600-201706101
VMware ESXi=6.0-600-201706102
VMware ESXi=6.0-600-201706103
VMware ESXi=6.5
VMware ESXi=6.5-2
VMware ESXi=6.5-650-201701001
VMware ESXi=6.5-650-201703001
VMware ESXi=6.5-650-201703002
VMware ESXi=6.5-650-201704001
VMware ESXi=6.5-650-201707101
VMware ESXi=6.5-650-201707102
VMware ESXi=6.5-650-201707103
VMware ESXi=6.5-650-201707201
VMware ESXi=6.5-650-201707202
VMware ESXi=6.5-650-201707203
VMware ESXi=6.5-650-201707204
VMware ESXi=6.5-650-201707205
VMware ESXi=6.5-650-201707206
VMware ESXi=6.5-650-201707207
VMware ESXi=6.5-650-201707208
VMware ESXi=6.5-650-201707209
VMware ESXi=6.5-650-201707210
VMware ESXi=6.5-650-201707211
VMware ESXi=6.5-650-201707212
VMware ESXi=6.5-650-201707213
VMware ESXi=6.5-650-201707214
VMware ESXi=6.5-650-201707215
VMware ESXi=6.5-650-201707216
VMware ESXi=6.5-650-201707217
VMware ESXi=6.5-650-201707218
VMware ESXi=6.5-650-201707219
VMware ESXi=6.5-650-201707220
VMware ESXi=6.5-650-201707221
VMware ESXi=6.5-650-201710001
VMware ESXi=6.5-650-201712001
VMware ESXi=6.5-650-201803001
VMware ESXi=6.5-650-201806001
VMware ESXi=6.7
VMware ESXi=6.7-670-201806001

Remedy

https://www.vmware.com/security/advisories/VMSA-2018-0018.html

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-6972?

    CVE-2018-6972 is classified as a denial-of-service vulnerability, which can lead to system unavailability.

  • How do I fix CVE-2018-6972?

    To fix CVE-2018-6972, update your VMware ESXi, Workstation, or Fusion to the latest version as per the vendor's recommendations.

  • What versions are affected by CVE-2018-6972?

    CVE-2018-6972 affects VMware ESXi versions 5.5 to 6.7, VMware Workstation 14.x before 14.1.2, and VMware Fusion 10.x before 10.1.2.

  • What causes the CVE-2018-6972 vulnerability?

    CVE-2018-6972 is caused by a NULL pointer dereference issue within the product, leading to potential denial-of-service.

  • Is there a workaround for CVE-2018-6972?

    There are no specific workarounds recommended for CVE-2018-6972; applying the update is the best course of action.

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