Vulnerability identifier: #VU95071

Vulnerability 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-2024-41027

CWE-ID: CWE-399

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 resource management error within the userfaultfd_api() function in fs/userfaultfd.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/519547760f16eae7803d2658d9524bc5ba7a20a7
http://git.kernel.org/stable/c/14875fd5f9bcf60ac5518c63bfb676ade44aa7c6
http://git.kernel.org/stable/c/cd94cac4069a763ab5206be2c64c9a8beae590ba
http://git.kernel.org/stable/c/8111f902b7c95d75fc80c7e577f5045886c6b384
http://git.kernel.org/stable/c/1723f04caacb32cadc4e063725d836a0c4450694

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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.