SB20251001121 - Buffer overflow in Linux kernel thunderbolt driver
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001121
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2023-53527)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the tb_handle_dp_bandwidth_request() function in drivers/thunderbolt/tb.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.