CVE-2021-34987

Published Jul 15, 2022

Last updated 2 years ago

Overview

Description
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.
Source
zdi-disclosures@trendmicro.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
8.2
Impact score
6
Exploitability score
1.5
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Severity
HIGH

CVSS 3.0

Type
Secondary
Base score
8.2
Impact score
6
Exploitability score
1.5
Vector string
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Severity
HIGH

Weaknesses

zdi-disclosures@trendmicro.com
CWE-120

Social media

Hype score
Not currently trending

Configurations