Denial of service in Linux kernel Netfilter

1) Improper Resource Shutdown or Release

EUVDB-ID: #VU70876

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/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-2022-3544

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

Exploit availability: No

Description

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

The vulnerability exists due to improper resource management within the damon_sysfs_add_target() function in mm/damon/sysfs.c in Linux kernel Netfilter. A local user can cause the kernel to crash.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next.git/commit/?id=1c8e2349f2d033f634d046063b704b2ca6c46972
http://vuldb.com/?id.211044

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.