PT-2020-3013 · Vmware · Vmware Fusion+2

Reno Robert · Published 2020-06-23 · Updated 2020-07-01 · CVE-2020-3966

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions VMware ESXi versions 7.0 before ESXi 7.0.0-1.20.16321839 VMware ESXi versions 6.7 before ESXi670-202004101-SG VMware ESXi versions 6.5 before ESXi650-202005401-SG VMware Workstation versions 15.x before 15.5.2 VMware Fusion versions 11.x before 11.5.2

Description The issue is related to a heap-overflow due to a race condition in the USB 2.0 controller (EHCI) of VMware products. This could allow a malicious actor with local access to a virtual machine to execute code on the hypervisor from a virtual machine, but additional conditions beyond the attacker's control must be present for exploitation to be possible.

Recommendations For VMware ESXi versions 7.0 before ESXi 7.0.0-1.20.16321839, update to ESXi 7.0.0-1.20.16321839 or later. For VMware ESXi versions 6.7 before ESXi670-202004101-SG, update to ESXi670-202004101-SG or later. For VMware ESXi versions 6.5 before ESXi650-202005401-SG, update to ESXi650-202005401-SG or later. For VMware Workstation versions 15.x before 15.5.2, update to 15.5.2 or later. For VMware Fusion versions 11.x before 11.5.2, update to 11.5.2 or later.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

BDU:2020-03236

CVE-2020-3966

ZDI-20-783

Affected Products

Vmware Esxi

Vmware Fusion

Vmware Workstation

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2020-3966 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3966 · Vendor Advisory
• https://vmware.com/security/advisories/VMSA-2020-0015.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-03236 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-20-783 · Security Note
• https://t.me/cvenotify/4646 · Telegram Post