SB20241230236 - Integer underflow in Linux kernel typec ucsi driver



SB20241230236 - Integer underflow in Linux kernel typec ucsi driver

Published: December 30, 2024 Updated: May 11, 2025

Security Bulletin ID SB20241230236
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Integer underflow (CVE-ID: CVE-2024-53203)

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer underflow within the ucsi_ccg_sync_control() function in drivers/usb/typec/ucsi/ucsi_ccg.c. A local user can execute arbitrary code.


Remediation

Install update from vendor's website.