SB2024080842 - NULL pointer dereference in Linux kernel char tpm driver
Published: August 8, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024080842
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) NULL pointer dereference (CVE-ID: CVE-2024-42255)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the tpm_buf_check_hmac_response() function in drivers/char/tpm/tpm2-sessions.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.