CVE-2017-4941 — HIGH (8.8) — White Hats Nepal

Q: How severe is CVE-2017-4941?

CVE-2017-4941 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2017-4941?

Check the references section above for vendor advisories and patch information. Affected products include: Vmware Fusion, Apple Mac Os X, Vmware Workstation, Vmware Esxi.

Vulnerability 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 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Vmware	Fusion	>= 8.0.0, < 8.5.9
Apple	Mac Os X	-
Vmware	Workstation	>= 12.0.0, < 12.5.8
Vmware	Esxi	5.5

Related Weaknesses (CWE)

CWE-119

References

http://www.securitytracker.com/id/1040024Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040025Third Party AdvisoryVDB Entry
https://www.vmware.com/security/advisories/VMSA-2017-0021.htmlIssue TrackingPatchVendor Advisory
http://www.securitytracker.com/id/1040024Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040025Third Party AdvisoryVDB Entry
https://www.vmware.com/security/advisories/VMSA-2017-0021.htmlIssue TrackingPatchVendor Advisory

FAQ

What is CVE-2017-4941?

CVE-2017-4941 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 s...

How severe is CVE-2017-4941?

CVE-2017-4941 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-4941?

Check the references section above for vendor advisories and patch information. Affected products include: Vmware Fusion, Apple Mac Os X, Vmware Workstation, Vmware Esxi.