high
8.8
CWE
787
Advisory Published
Updated

CVE-2017-4933

First published: Wed Dec 20 2017(Updated: )

VMware ESXi (6.5 before ESXi650-201710401-BG), Workstation (12.x before 12.5.8), and Fusion (8.x before 8.5.9) contain a vulnerability that could allow an authenticated VNC session to cause a heap overflow via a specific set of VNC packets resulting in heap corruption. Successful exploitation of this issue could result in remote code execution in a virtual machine via the authenticated VNC session. Note: In order for exploitation to be possible in ESXi, VNC must be manually enabled in a virtual machine's .vmx configuration file. In addition, ESXi must be configured to allow VNC traffic through the built-in firewall.

Credit: security@vmware.com

Affected SoftwareAffected VersionHow to fix
VMware Workstation Pro>=12.0.0<12.5.8
VMware Workstation Pro=14.0
VMware Workstation Pro=14.1.0
VMware ESXi=6.5
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 Fusion>=8.0.0<8.5.9
Apple Mac OS X

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Reference Links

Frequently Asked Questions

  • What is CVE-2017-4933?

    CVE-2017-4933 is a vulnerability in VMware ESXi, Workstation, and Fusion that allows an authenticated VNC session to cause a heap overflow resulting in heap corruption.

  • What is the severity of CVE-2017-4933?

    The severity of CVE-2017-4933 is rated as high with a severity value of 8.8.

  • Which software versions are affected by CVE-2017-4933?

    VMware ESXi versions 6.5, Workstation versions 12.x before 12.5.8, and Fusion versions 8.x before 8.5.9 are affected by CVE-2017-4933.

  • How can CVE-2017-4933 be exploited?

    CVE-2017-4933 can be exploited through an authenticated VNC session using a specific set of VNC packets that cause a heap overflow and result in heap corruption.

  • Where can I find more information about CVE-2017-4933?

    You can find more information about CVE-2017-4933 on the following references: [SecurityTracker ID 1040024](http://www.securitytracker.com/id/1040024), [SecurityTracker ID 1040025](http://www.securitytracker.com/id/1040025), and [VMware Advisory VMSA-2017-0021](https://www.vmware.com/security/advisories/VMSA-2017-0021.html).

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