#VU94108 Resource exhaustion in Linux kernel - CVE-2024-26621

Vulnerability identifier: #VU94108

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-2024-26621

CWE-ID: CWE-400

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 system forces huge page alignment on 32-bit systems in mm/huge_memory.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/7432376c913381c5f24d373a87ff629bbde94b47
https://git.kernel.org/stable/c/4ef9ad19e17676b9ef071309bc62020e2373705d
https://git.kernel.org/stable/c/87632bc9ecff5ded93433bc0fca428019bdd1cfe
https://zolutal.github.io/aslrnt/
https://www.openwall.com/lists/oss-security/2024/07/08/3
https://www.openwall.com/lists/oss-security/2024/07/08/5
https://www.openwall.com/lists/oss-security/2024/07/08/4
https://www.openwall.com/lists/oss-security/2024/07/08/6
https://www.openwall.com/lists/oss-security/2024/07/08/7
https://www.openwall.com/lists/oss-security/2024/07/08/8
https://www.openwall.com/lists/oss-security/2024/07/09/1
https://www.openwall.com/lists/oss-security/2024/07/10/5
https://www.openwall.com/lists/oss-security/2024/07/10/7
https://www.openwall.com/lists/oss-security/2024/07/10/8

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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.