CVE-2021-27259

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 16.0.1-48919. An attacker must first obtain the ability to execute low-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the Toolgate 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 hypervisor. Was ZDI-CAN-12021.

CVSS v3.0 7.8 HIGH
CVSS v2.0 4.4 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.1 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

4.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://kb.parallels.com/en/125013	Release Notes Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-212/	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

cpe:2.3:a:parallels:parallels_desktop:16.0.1:*:*:*:*:macos:*:*

Information

Published : 2021-04-14 09:15

Updated : 2021-04-22 08:59

NVD link : CVE-2021-27259

Mitre link : CVE-2021-27259

JSON object : View

CWE

CWE-190

Integer Overflow or Wraparound

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Products Affected

parallels

parallels_desktop

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