CVE Vulnerability

CVE-2021-34987

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.5.1 (49187). 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 HDAudio 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 buffer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the hypervisor. Was ZDI-CAN-14969.

8.2 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.5 / Impact : 6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References
Link Resource
https://www.zerodayinitiative.com/advisories/ZDI-22-386/ Third Party Advisory VDB Entry
https://kb.parallels.com/en/125013 Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:parallels:parallels_desktop:16.5.1:*:*:*:*:macos:*:*
Information

Published : 2022-07-15 07:15

Updated : 2022-07-22 01:58

NVD link : CVE-2021-34987

Mitre link : CVE-2021-34987

Products Affected

Parallels

Parallels Desktop

CWE
CWE-120