CVE-2021-27242: Parallels Desktop Toolgate Out-Of-Bounds Write Privilege Escalation Vulnerability
First published: Mon Mar 29 2021(Updated: )
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. 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 a memory corruption condition. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Parallels Desktop | ||
| Parallels Desktop | =16.0.1 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Parallels Desktop vulnerability?
The vulnerability ID for this Parallels Desktop vulnerability is CVE-2021-27242.
What is the severity of CVE-2021-27242?
The severity of CVE-2021-27242 is high with a score of 8.8.
What is affected by CVE-2021-27242?
The vulnerability affects Parallels Desktop 16.0.1 on macOS.
How can an attacker exploit CVE-2021-27242?
The attacker needs to execute low-privileged code on the target guest system to exploit this vulnerability.
Is there a fix available for CVE-2021-27242?
Yes, a fix is available for this vulnerability. Please refer to the vendor's advisory for more information.
- collector/zdi-advisory
- alias/ZDI-21-209
- alias/ZDI-CAN-11926
- alias/CVE-2021-27242
- collector/nvd-index
- agent/title
- vendor/parallels
- canonical/parallels desktop
- version/parallels desktop/16.0.1