#VU99014 Improper locking in Linux kernel - CVE-2024-49980

Vulnerability identifier: #VU99014

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-2024-49980

CWE-ID: CWE-667

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 improper locking within the vrf_finish_direct() function in drivers/net/vrf.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/718a752bd746b3f4dd62516bb437baf73d548415
https://git.kernel.org/stable/c/8c9381b3138246d46536db93ed696832abd70204
https://git.kernel.org/stable/c/e61f8c4d179b2ffc0d3b7f821c3734be738643d0
https://git.kernel.org/stable/c/b04c4d9eb4f25b950b33218e33b04c94e7445e51

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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.