What is the vulnerability ID for this Parallels Desktop vulnerability?

The vulnerability ID for this Parallels Desktop vulnerability is CVE-2021-27259.

What is the title of this Parallels Desktop vulnerability?

The title of this Parallels Desktop vulnerability is Parallels Desktop Toolgate Integer Overflow Privilege Escalation Vulnerability.

What is the severity rating of CVE-2021-27259?

The severity rating of CVE-2021-27259 is 7.8 (high).

Which software versions are affected by this Parallels Desktop vulnerability?

This Parallels Desktop vulnerability affects version 16.0.1 of Parallels Desktop.

How can this Parallels Desktop vulnerability be exploited?

This Parallels Desktop vulnerability can be exploited by local attackers who have the ability to execute low-privileged code on the target guest system.

Vulnerability/
CVE-2021-27259

high

7.8

CWE

190

14/4/2021

3/8/2024

CVE-2021-27259: Parallels Desktop Toolgate Integer Overflow Privilege Escalation Vulnerability

First published: Wed Apr 14 2021(Updated: )

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.0.1-48919. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the Toolgate component. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-12021.

Credit: zdi-disclosures@trendmicro.com

Affected Software	Affected Version	How to fix
Parallels Desktop	=16.0.1

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Frequently Asked Questions

What is the vulnerability ID for this Parallels Desktop vulnerability?
The vulnerability ID for this Parallels Desktop vulnerability is CVE-2021-27259.
What is the title of this Parallels Desktop vulnerability?
The title of this Parallels Desktop vulnerability is Parallels Desktop Toolgate Integer Overflow Privilege Escalation Vulnerability.
What is the severity rating of CVE-2021-27259?
The severity rating of CVE-2021-27259 is 7.8 (high).
Which software versions are affected by this Parallels Desktop vulnerability?
This Parallels Desktop vulnerability affects version 16.0.1 of Parallels Desktop.
How can this Parallels Desktop vulnerability be exploited?
This Parallels Desktop vulnerability can be exploited by local attackers who have the ability to execute low-privileged code on the target guest system.

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collector/zdi-advisory
source/ZDI
alias/ZDI-21-212
alias/ZDI-CAN-12021
alias/CVE-2021-27259
agent/software-canonical-lookup
vendor/parallels
canonical/parallels desktop
version/parallels desktop/16.0.1

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