#VU108336 Improper error handling in Linux kernel - CVE-2025-23149

Vulnerability identifier: #VU108336

Vulnerability risk: Low

CVSSv4.0: 4.3 [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/E:U/U:Clear]

CVE-ID: CVE-2025-23149

CWE-ID: CWE-388

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.12, 6.12.1, 6.12.2, 6.12.3, 6.12.4, 6.12.5, 6.12.6, 6.12.7, 6.12.8, 6.12.9, 6.12.10, 6.12.11, 6.12.12, 6.12.13, 6.12.14, 6.12.15, 6.12.16, 6.12.17, 6.12.18, 6.12.19, 6.12.20, 6.12.21, 6.12.22, 6.12.23

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External links
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

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.