CVE-2021-31428: Parallels Desktop IDE Heap-based Buffer Overflow Privilege Escalation Vulnerability
First published: Thu Apr 29 2021(Updated: )
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-13186.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Parallels Parallels Desktop | =15.1.5-47309 | |
| Parallels Desktop |
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Reference Links
Frequently Asked Questions
What is CVE-2021-31428?
CVE-2021-31428 is a vulnerability that allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.5-47309.
How does CVE-2021-31428 affect Parallels Desktop?
CVE-2021-31428 affects Parallels Desktop version 15.1.5-47309.
What is the severity of CVE-2021-31428?
CVE-2021-31428 has a severity rating of 8.2 (high).
How can CVE-2021-31428 be exploited?
In order to exploit CVE-2021-31428, an attacker must first obtain the ability to execute high-privileged code on the target guest system.
How can I fix CVE-2021-31428?
To fix CVE-2021-31428, update to a version of Parallels Desktop that is not affected by the vulnerability.
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