NULL pointer dereference in Linux kernel thermal driver

1) NULL pointer dereference

EUVDB-ID: #VU90656

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-52473

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the device_del() function in drivers/thermal/thermal_core.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/335176dd8ebaca6493807dceea33c478305667fa
http://git.kernel.org/stable/c/02871710b93058eb1249d5847c0b2d1c2c3c98ae
http://git.kernel.org/stable/c/04e6ccfc93c5a1aa1d75a537cf27e418895e20ea

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.