SB20250226370 - NULL pointer dereference in Linux kernel char tpm driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226370
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-2022-49286)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the tpm2_init_space() function in drivers/char/tpm/tpm2-space.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/476ddd23f818fb94cf86fb5617f3bb9a7c92113d
- https://git.kernel.org/stable/c/5b1d2561a03e534064b51c50c774657833d3d2cf
- https://git.kernel.org/stable/c/95193d12f10a8a088843b25e0f5fe1d83ec6b079
- https://git.kernel.org/stable/c/ba84f9a48366dcc3cdef978599433efe101dd5bd
- https://git.kernel.org/stable/c/eda1662cce964c8a65bb86321f8d9cfa6e9ceaab
- https://git.kernel.org/stable/c/fb5abce6b2bb5cb3d628aaa63fa821da8c4600f9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.109
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.32
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.188