#VU94274 Improper locking in Linux kernel - CVE-2024-40967

Vulnerability identifier: #VU94274

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-2024-40967

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 imx_uart_console_write() function in drivers/tty/serial/imx.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.15 - 5.15.161, 6.1 - 6.1.95, 6.6 - 6.6.35

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External links
https://git.kernel.org/stable/c/7f2b9ab6d0b26f16cd38dd9fd91d51899635f7c7
https://git.kernel.org/stable/c/7f9e70c68b7ace0141fe3bc94bf7b61296b71916
https://git.kernel.org/stable/c/982ae3376c4c91590d38dc8a676c10f7df048a44
https://git.kernel.org/stable/c/53b2c95547427c358f45515a9f144efee95e3701
https://git.kernel.org/stable/c/e533e4c62e9993e62e947ae9bbec34e4c7ae81c2
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.162
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.96
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.36

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?