Vulnerability identifier: #VU92045

Vulnerability 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-2023-52635

CWE-ID: CWE-667

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 locking within the devfreq_monitor(), devfreq_monitor_start() and devfreq_monitor_stop() functions in drivers/devfreq/devfreq.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

---

External links
http://git.kernel.org/stable/c/3399cc7013e761fee9d6eec795e9b31ab0cbe475
http://git.kernel.org/stable/c/099f6a9edbe30b142c1d97fe9a4748601d995675
http://git.kernel.org/stable/c/31569995fc65007b73a3fff605ec2b3401b435e9
http://git.kernel.org/stable/c/0aedb319ef3ed39e9e5a7b7726c8264ca627bbd9
http://git.kernel.org/stable/c/ae815e2fdc284ab31651d52460698bd89c0fce22
http://git.kernel.org/stable/c/aed5ed595960c6d301dcd4ed31aeaa7a8054c0c6

---

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.