#VU99141 Resource management error in Linux kernel - CVE-2022-48971

Vulnerability identifier: #VU99141

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-2022-48971

CWE-ID: CWE-399

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 resource management error within the bt_init() and sock_unregister() functions in net/bluetooth/af_bluetooth.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

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External links
https://git.kernel.org/stable/c/8a66c3a94285552f6a8e45d73b34ebbad11d388b
https://git.kernel.org/stable/c/2c6cf0afc3856359e620e96edd952457d258e16c
https://git.kernel.org/stable/c/e7b950458156d410509a08c41930b75e72985938
https://git.kernel.org/stable/c/edf7284a98296369dd0891a0457eec37df244873
https://git.kernel.org/stable/c/5ecf7cd6fde5e72c87122084cf00d63e35d8dd9f
https://git.kernel.org/stable/c/2f3957c7eb4e07df944169a3e50a4d6790e1c744

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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.