Denial of service in Linux kernel ufs driver

1) Return of pointer value outside of expected range

EUVDB-ID: #VU74129

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/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-2023-23001

CWE-ID: CWE-466 - Return of pointer value outside of expected range

Exploit availability: No

Description

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

The vulnerability exist due to the regulator_get() function in drivers/scsi/ufs/ufs-mediatek.c misinterprets the return value. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.16.0 - 5.16.2

External links

http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3
http://github.com/torvalds/linux/commit/3ba880a12df5aa4488c18281701b5b1bc3d4531a

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.