Memory leak in Linux kernel bluetooth

1) Memory leak

EUVDB-ID: #VU104371

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-2022-49116

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak within the l2cap_ecred_connect() function in net/bluetooth/l2cap_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

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/42b6a39f439b6f37cc2024d91ce547d83290ff78
https://git.kernel.org/stable/c/9567d54e70ff58c2695c2cc2e53c86c67551d3e6
https://git.kernel.org/stable/c/d3715b2333e9a21692ba16ef8645eda584a9515d
https://git.kernel.org/stable/c/d588c183a971b85c775ad66da563ee6e8bc8158f
https://git.kernel.org/stable/c/e9e55acee9b7a737ec7f5161b94a78932a5514c8

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.