VMware ESXi/Workstation/Fusion USB 2.0 Controller race condition

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6.1$0-$5k0.00

A vulnerability classified as critical was found in VMware ESXi, Workstation and Fusion (Virtualization Software) (the affected version is unknown). This vulnerability affects an unknown function of the component USB 2.0 Controller. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202004101-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.2), and Fusion (11.x before 11.5.2) contain a heap-overflow due to a race condition issue in the USB 2.0 controller (EHCI). A malicious actor with local access to a virtual machine may be able to exploit this vulnerability to execute code on the hypervisor from a virtual machine. Additional conditions beyond the attacker's control must be present for exploitation to be possible.

The weakness was released 06/25/2020 (Website). The advisory is shared for download at vmware.com. This vulnerability was named CVE-2020-3966 since 12/30/2019. The attack needs to be approached locally. The successful exploitation requires a single authentication. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

Entries connected to this vulnerability are available at 157244, 157245, 157273 and 157274.

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VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

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VulDB Base Score: 🔒
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Exploitinginfoedit

Class: Race condition (CWE-362)
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

12/30/2019 CVE assigned
06/25/2020 +178 days Advisory disclosed
06/26/2020 +1 days VulDB entry created
10/27/2020 +123 days VulDB last update

Sourcesinfoedit

Vendor: https://www.vmware.com/

Advisory: vmware.com
Status: Not defined
Confirmation: 🔒

CVE: CVE-2020-3966 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20060413
See also: 🔒

Entryinfoedit

Created: 06/26/2020 12:46 PM
Updated: 10/27/2020 09:58 AM
Changes: (1) advisory_confirm_url
Complete: 🔍

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