Advisory Details

May 24th, 2018

VMware Workstation ghi update Null Pointer Dereference Denial of Service Vulnerability

ZDI-18-533
ZDI-CAN-6078

CVE ID CVE-2018-6963
CVSS SCORE 4.9, AV:L/AC:L/Au:N/C:N/I:N/A:C
AFFECTED VENDORS VMware
AFFECTED PRODUCTS VMware Workstation
VULNERABILITY DETAILS


This vulnerability allows local attackers to deny service on vulnerable installations of VMware Workstation. An attacker must first obtain the ability to execute low-privileged code on a guest OS in order to exploit this vulnerability.

The specific flaw exists within the ghi.guest.trayIcon.update RPC function. A crafted request can trigger the dereference of a null pointer. An attacker can leverage this vulnerability to create a denial-of-service condition to users of the guest OS.
ADDITIONAL DETAILS VMware has issued an update to correct this vulnerability. More details can be found at:
https://www.vmware.com/security/advisories/VMSA-2018-0013.html
DISCLOSURE TIMELINE
  • 2018-04-17 - Vulnerability reported to vendor
  • 2018-05-24 - Coordinated public release of advisory
  • 2018-05-24 - Advisory Updated
CREDIT Hahna Latonick and Kevin Fujimoto
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