PT-2021-3251 · Cortado+1 · Cortado Thinprint+2

Hjy79425575 + 1 · Published 2021-05-20 · Updated 2021-06-04 · CVE-2021-21987

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 TTC Parser. 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. The exploitation may allow a remote attacker to disclose protected information.

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.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2021-02971

CVE-2021-21987

ZDI-21-608

Affected Products

Cortado Thinprint

Horizon Client For Windows

Vmware Workstation

References · 6

• https://osv.dev/vulnerability/CVE-2021-21987 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-02971 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-608 · Security Note
• https://vmware.com/security/advisories/VMSA-2021-0009.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21987 · Security Note
• https://cybersecurity-help.cz/vdb/SB2021052406 · Note