Untrusted Pointer Dereference in Microsoft products - CVE-2022-41121

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Main Vulnerability Database Vulnerabilities #VU70157

Untrusted Pointer Dereference in Microsoft products - CVE-2022-41121

Published: December 13, 2022 / Updated: January 2, 2023


Vulnerability identifier: #VU70157
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-41121
CWE-ID: CWE-822
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Windows
Windows Server
Remote Desktop client for Windows Desktop
Software vendor:
Microsoft

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper input validation within the StretchBlt and PlgBlt graphics primitives. A local user can run a specially crafted program to trigger an untrusted pointer dereference and execute arbitrary code with SYSTEM privileges.


Remediation

Install updates from vendor's website.

External links