Memory leak in Linux kernel core

1) Memory leak

EUVDB-ID: #VU91621

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-2023-52735

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 sock_map_unhash(), sock_map_destroy() and sock_map_close() functions in net/core/sock_map.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/f312367f5246e04df564d341044286e9e37a97ba
http://git.kernel.org/stable/c/7499859881488da97589f3c79cc66fa75748ad49
http://git.kernel.org/stable/c/5b4a79ba65a1ab479903fff2e604865d229b70a9

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.