CVE-2021-31425: Parallels Desktop Tools Integer Overflow Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.2-49151. 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 Parallels Tools 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 kernel on the target guest system. Was ZDI-CAN-12790.
Other sources
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 Parallels Tools 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 kernel on the target guest system.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-31425?
CVE-2021-31425 is a vulnerability that allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.1.2-49151.
How can this vulnerability be exploited?
To exploit CVE-2021-31425, an attacker must first obtain the ability to execute low-privileged code on the target guest system.
What is the affected software?
The affected software is Parallels Desktop 16.1.2-49151.
What is the severity of CVE-2021-31425?
The severity of CVE-2021-31425 is high with a CVSS score of 8.8.
Is there a fix for this vulnerability?
Yes, it is recommended to update to the latest version of Parallels Desktop to address this vulnerability.