#VU104332 Memory leak in Linux kernel - CVE-2022-49671

Vulnerability identifier: #VU104332

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-2022-49671

CWE-ID: CWE-401

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 memory leak within the ib_cm_insert_listen() function in drivers/infiniband/core/cm.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/2990f223ffa7bb25422956b9f79f9176a5b38346
https://git.kernel.org/stable/c/2febf09a8a8ae4accf908f043f1bab1421056568
https://git.kernel.org/stable/c/889000874c1204e47c7f2a4945db262a47e7efc9
https://git.kernel.org/stable/c/b0cab8b517aeaf2592c3479294f934209c41a26f

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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.