PT-2021-3250 · Cortado+1 · Cortado Thinprint+2

Published 2021-05-20 · Updated 2021-06-04 · CVE-2021-21988

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions VMware Workstation versions 16.x prior to 16.1.2 Horizon Client for Windows versions 5.x prior to 5.5.2

Description The issue is related to an out-of-bounds read vulnerability in the Cortado ThinPrint component, specifically the JPEG2000 Parser, of VMware Workstation and Horizon Client for Windows. This vulnerability can be exploited by a malicious actor with access to a virtual machine or remote desktop, potentially leading to information disclosure from the TPView process.

Recommendations For VMware Workstation versions 16.x prior to 16.1.2, update to version 16.1.2 or later. For Horizon Client for Windows versions 5.x prior to 5.5.2, update to version 5.5.2 or later. As a temporary workaround, consider restricting access to the Cortado ThinPrint component until a patch is applied.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2021-02970

CVE-2021-21988

ZDI-21-609

Affected Products

Cortado Thinprint

Horizon Client For Windows

Vmware Workstation

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-21988 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-609 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21988 · Vendor Advisory
• https://vmware.com/security/advisories/VMSA-2021-0009.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-02970 · Security Note
• https://cybersecurity-help.cz/vdb/SB2021052406 · Note