#VU93680 Input validation error in Linux kernel - CVE-2024-35801

Vulnerability identifier: #VU93680

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-2024-35801

CWE-ID: CWE-20

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 input validation within the fpu__init_cpu_xstate() function in arch/x86/kernel/fpu/xstate.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/21c7c00dae55cb0e3810d5f9506b58f68475d41d
https://git.kernel.org/stable/c/1acbca933313aa866e39996904c9aca4d435c4cd
https://git.kernel.org/stable/c/92b0f04e937665bde5768f3fcc622dcce44413d8
https://git.kernel.org/stable/c/b61e3b7055ac6edee4be071c52f48c26472d2624
https://git.kernel.org/stable/c/10e4b5166df9ff7a2d5316138ca668b42d004422

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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.