SB2024081369 - Privilege escalation in Microsoft Windows Ancillary Function Driver for WinSock



SB2024081369 - Privilege escalation in Microsoft Windows Ancillary Function Driver for WinSock

Published: August 13, 2024 Updated: December 6, 2024

Security Bulletin ID SB2024081369
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Use-after-free (CVE-ID: CVE-2024-38193)

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

The vulnerability exists due to a use-after-free error within the ancillary function driver for WinSock. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Note, the vulnerability is being actively exploited in the wild.


Remediation

Install update from vendor's website.