#VU100077 Improper locking in Linux kernel - CVE-2024-50141

Vulnerability identifier: #VU100077

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-2024-50141

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 efi_pa_va_lookup(), acpi_parse_prmt() and acpi_platformrt_space_handler() functions in drivers/acpi/prmt.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/8ce081ad842510f0e70fa6065a401660eac876d4
https://git.kernel.org/stable/c/795b080d9aa127215a5baf088a22fa09341a0126
https://git.kernel.org/stable/c/20e9fafb8bb6f545667d7916b0e81e68c0748810
https://git.kernel.org/stable/c/088984c8d54c0053fc4ae606981291d741c5924b

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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.