CVE-2021-31426
Last modified
CVE-2021-31426 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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 system in order to exploit this vulnerability. EPSS estimates a 0.45% chance of exploitation in the next 30 days.
Description
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 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-12791.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Parallels | Parallels Desktop | 16.1.2-49151 |
References
- https://kb.parallels.com/en/125013Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-433/Third Party Advisory, VDB Entry
- https://kb.parallels.com/en/125013Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-433/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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