CVE-2021-27244: Parallels Desktop Toolgate Out-Of-Bounds Read Information Disclosure Vulnerability
First published: Mon Mar 29 2021(Updated: )
This vulnerability allows local attackers to disclose sensitive information 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 read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary 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 CVE-2021-27244?
CVE-2021-27244 is an out-of-bounds read information disclosure vulnerability in Parallels Desktop.
How does CVE-2021-27244 affect Parallels Desktop?
CVE-2021-27244 allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 16.0.1-48919.
What is the severity of CVE-2021-27244?
The severity of CVE-2021-27244 is medium with a CVSS score of 6.5.
How can this vulnerability be exploited?
In order to exploit CVE-2021-27244, an attacker must first obtain the ability to execute low-privileged code on the target guest system.
Is there a fix for CVE-2021-27244?
Yes, it is recommended to update to the latest version of Parallels Desktop to mitigate CVE-2021-27244.
- collector/zdi-advisory
- alias/ZDI-21-211
- alias/ZDI-CAN-11925
- alias/CVE-2021-27244
- collector/nvd-index
- vendor/parallels
- canonical/parallels desktop
- version/parallels desktop/16.0.1