Vulnerability identifier: #VU46755

Vulnerability risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3987

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

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

Vendor: VMware, Inc

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in the Cortado ThinPrint component in EMR STRETCHDIBITS parser. A remote authenticated attacker can use a specially crafted EMF file, trigger out-of-bounds read error and read contents of memory on the system or cause a denial of service (DoS) condition.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

VMware Horizon Client: 5.0.0 - 5.4.3

VMware Workstation: 15.0.0 - 15.5.6

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External links
http://www.zerodayinitiative.com/advisories/ZDI-20-1180/
http://www.vmware.com/security/advisories/VMSA-2020-0020.html

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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