CVE Vulnerabilities

CVE-2023-21768

Untrusted Pointer Dereference

Published: Jan 10, 2023 | Modified: Nov 21, 2024
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Weakness

The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.

Affected Software

Name Vendor Start Version End Version
Windows_11 Microsoft 21h2 (including) 21h2 (including)
Windows_11 Microsoft 22h2 (including) 22h2 (including)
Windows_server_2022 Microsoft - (including) - (including)

Extended Description

An attacker can supply a pointer for memory locations that the product is not expecting. If the pointer is dereferenced for a write operation, the attack might allow modification of critical state variables, cause a crash, or execute code. If the dereferencing operation is for a read, then the attack might allow reading of sensitive data, cause a crash, or set a variable to an unexpected value (since the value will be read from an unexpected memory location). There are several variants of this weakness, including but not necessarily limited to:

References