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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.5 / Impact : 6.0

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

Configurations

Configuration 1 (hide)

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

History

21 Nov 2024, 06:11

Type	Values Removed	Values Added
References	~~() https://kb.parallels.com/en/125013 - Vendor Advisory~~	() https://kb.parallels.com/en/125013 - Vendor Advisory
References	~~() https://www.zerodayinitiative.com/advisories/ZDI-22-386/ - Third Party Advisory, VDB Entry~~	() https://www.zerodayinitiative.com/advisories/ZDI-22-386/ - Third Party Advisory, VDB Entry

Information

Published : 2022-07-15 19:15

Updated : 2024-11-21 06:11

NVD link : CVE-2021-34987

Mitre link : CVE-2021-34987

CVE.ORG link : CVE-2021-34987

JSON object : View

Products Affected

parallels

parallels_desktop

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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