NULL pointer dereference in Linux kernel - CVE-2024-42255
Published: August 8, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU95559
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-42255
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
IBM Qradar SIEM
IBM Security Guardium
IBM Qradar SIEM
IBM Security Guardium
How to mitigate CVE-2024-42255
Install update from vendor's website.
Linux kernel - addressed in versions 6.10.1, 6.11
IBM Qradar SIEM - update to 7.5.0 Update Pack 10 IF01
IBM Security Guardium - update to 12.0p30
IBM Qradar SIEM - update to 7.5.0 Update Pack 10 IF01
IBM Security Guardium - update to 12.0p30