Memory leak in Linux kernel netfilter

1) Memory leak

EUVDB-ID: #VU91645

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-48654

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

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to memory leak within the nf_osf_find() function in net/netfilter/nfnetlink_osf.c. A local user can gain access to sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/721ea8ac063d70c2078c4e762212705de6151764
http://git.kernel.org/stable/c/5d75fef3e61e797fab5c3fbba88caa74ab92ad47
http://git.kernel.org/stable/c/816eab147e5c6f6621922b8515ad9010ceb1735e
http://git.kernel.org/stable/c/633c81c0449663f57d4138326d036dc6cfad674e
http://git.kernel.org/stable/c/559c36c5a8d730c49ef805a72b213d3bba155cc8

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.