CVE-2017-4941

MEDIUM

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.

References

http://www.securitytracker.com/id/1040024

http://www.securitytracker.com/id/1040025

https://www.vmware.com/security/advisories/VMSA-2017-0021.html

Details

Source: MITRE

Published: 2017-12-20

Updated: 2018-01-11

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 6

Vector: (AV:N/AC:M/Au:S/C:P/I:P/A:P)

Impact Score: 6.4

Exploitability Score: 6.8

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

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

Impact Score: 5.9

Exploitability Score: 1.6

Severity: HIGH