CVE-2024-42255

MEDIUM

Linux Kernel - NULL Pointer Dereference in tpm_buf_check_hmac_response

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: tpm: Use auth only after NULL check in tpm_buf_check_hmac_response() Dereference auth after NULL check in tpm_buf_check_hmac_response(). Otherwise, unless tpm2_sessions_init() was called, a call can cause NULL dereference, when TCG_TPM2_HMAC is enabled. [jarkko: adjusted the commit message.]

References (2)

Core 2

Core References

Patch

https://git.kernel.org/stable/c/b9afbb9a0c734197c59c43610071041044bf1562

Patch

https://git.kernel.org/stable/c/7dc357d343f134bf59815ff6098b93503ec8a23b

Scores

CVSS v3 5.5

EPSS 0.0018

EPSS Percentile 8.0%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (8)

linux/Kernel 6.10.0 - 6.10.1linux

Linux/Linux < 6.10

Linux/Linux 6.10

Linux/Linux 6.10.1 - 6.10.*

Linux/Linux 6.11

Linux/Linux 7ca110f2679b7d1f3ac1afc90e6ffbf0af3edf0d - 7dc357d343f134bf59815ff6098b93503ec8a23b

Linux/Linux 7ca110f2679b7d1f3ac1afc90e6ffbf0af3edf0d - b9afbb9a0c734197c59c43610071041044bf1562

linux/linux_kernel 6.10 (8 CPE variants)

Published Aug 08, 2024

Tracked Since Feb 18, 2026