Improper locking in Linux kernel phonet

1) Improper locking

EUVDB-ID: #VU92026

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-2024-27402

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the pep_sock_enable() and pep_ioctl() functions in net/phonet/pep.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/9d5523e065b568e79dfaa2ea1085a5bcf74baf78
http://git.kernel.org/stable/c/0a9f558c72c47472c38c05fcb72c70abb9104277
http://git.kernel.org/stable/c/8ef4fcc7014b9f93619851d6b78d6cc2789a4c88
http://git.kernel.org/stable/c/7d2a894d7f487dcb894df023e9d3014cf5b93fe5

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.