CVE-2017-4941 Information

Description

VMware ESXi (6.0 before ESXi600-201711101-SG 5.5 ESXi550-201709101-SG) 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 stack overflow via a specific set of VNC packets. 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.

CVSS Vector

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

Reference

http://www.securitytracker.com/id/1040024 http://www.securitytracker.com/id/1040025 https://www.vmware.com/security/advisories/VMSA-2017-0021.html

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.5