Use-after-free in VMware, Inc products - CVE-2020-3963

Vulnerability identifier: #VU29302

CSH Severity: Low

CVSS v4: 5.9 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-3963

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in PVNVRAM. A local attacker can read privileged information contained in hypervisor memory from a virtual machine.

Cloud Foundation
VMware Fusion
VMware Workstation
VMware ESXi
PowerFlex rack

Install updates from vendor's website.

VMware ESXi - addressed in versions ESXi_7.0.0-1.20.16321839, ESXi650-202005401-SG, ESXi670-202006401-SG
VMware Fusion - update to 11.5.2
VMware Workstation - update to 15.5.2
PowerFlex rack - addressed in versions 3.3.8.1, 3.4.3.1, 3.5.3.1

• https://www.vmware.com/security/advisories/VMSA-2020-0015.html
• https://exchange.xforce.ibmcloud.com/vulnerabilities/183917

• Multiple vulnerabilities in VMware ESXi, Fusion, Workstation and Cloud Foundation
• Multiple vulnerabilities in Dell EMC PowerFlex Rack