#VU102937 Improper locking in Linux kernel - CVE-2024-54683

Vulnerability identifier: #VU102937

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-2024-54683

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 idletimer_tg_destroy() and idletimer_tg_destroy_v1() functions in net/netfilter/xt_IDLETIMER.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/45fe76573a2557f632e248cc141342233f422b9a
https://git.kernel.org/stable/c/8c2c8445cda8f59c38dec7dc10509bcb23ae26a0
https://git.kernel.org/stable/c/f36b01994d68ffc253c8296e2228dfe6e6431c03

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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.