SB20250502241 - Improper error handling in Linux kernel char tpm driver
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502241
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) Improper error handling (CVE-ID: CVE-2025-23149)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the tpm_get_random() function in drivers/char/tpm/tpm-interface.c, within the tpm_try_get_ops() function in drivers/char/tpm/tpm-chip.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/1404dff1e11bf927b70ac25e1de97bed9742ede4
- https://git.kernel.org/stable/c/17d253af4c2c8a2acf84bb55a0c2045f150b7dfd
- https://git.kernel.org/stable/c/e74e2394eed90aff5c3a08c1f51f476d4de71d02
- https://git.kernel.org/stable/c/f1044e995b64d70ef90ef6f2b89955b127497702
- https://git.kernel.org/stable/c/f3cb81cb96d587f9f235a11789d1ec0992643078
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.24