CVE-2021-31429: Parallels Desktop IDE Heap-based Buffer Overflow Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.5-47309. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the IDE virtual device. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-13187.
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 high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the IDE virtual device. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2021-31429.
What is the severity level of CVE-2021-31429?
The severity level of CVE-2021-31429 is high with a severity value of 8.2.
How can an attacker exploit CVE-2021-31429?
An attacker can exploit CVE-2021-31429 by executing high-privileged code on the target guest system.
Which software versions are affected by CVE-2021-31429?
CVE-2021-31429 affects Parallels Desktop 15.1.5-47309.
Is there a fix available for CVE-2021-31429?
Yes, you can find the fix for CVE-2021-31429 on the Parallels Desktop knowledge base.