Multiple vulnerabilities in VMWare Workstation and Fusion

Published: 2022-02-15

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-22040 CVE-2021-22041
CWE-ID	CWE-416 CWE-362
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	VMware Fusion Client/Desktop applications / Virtualization software VMware Workstation Client/Desktop applications / Virtualization software
Vendor	VMware, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU60616

Risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22040

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote user to compromise the affected system.

The vulnerability exists due to a use-after-free error in the XHCI USB controller. A remote user with administrative permissions on the guest OS can trigger a use-after-free error and execute arbitrary code as the virtual machine's VMX process running on the host.

Successful exploitation of the vulnerability may allow an attacker to compromise the hypervisor.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

VMware Fusion: 12.2.0

VMware Workstation: 16.0 - 16.2.0

CPE2.3

External links

https://www.vmware.com/security/advisories/VMSA-2022-0004.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted file.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Race condition

EUVDB-ID: #VU60617