#VU59690 Input validation error in VMware Workstation and VMware Horizon Client - CVE-2022-22938

Vulnerability identifier: #VU59690

Vulnerability risk: Low

CVSSv4.0: 0.2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-22938

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
VMware Workstation
Client/Desktop applications / Virtualization software
VMware Horizon Client
Client/Desktop applications / Software for system administration

Vendor: VMware, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the Cortado ThinPrint component when parsing TrueType fonts. A remote attacker can trick the victim to print a specially crafted document from the guest OS and perform a denial of service (DoS) attack of the Thinprint service running on the host machine.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

VMware Workstation: 16.0 - 16.2.1

VMware Horizon Client: 5.0 - 5.5.2

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External links
https://www.vmware.com/security/advisories/VMSA-2022-0002.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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