#VU93665 Buffer overflow in Linux kernel - CVE-2024-35993

Vulnerability identifier: #VU93665

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-2024-35993

CWE-ID: CWE-119

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 memory corruption within the __clear_hugetlb_destructor(), add_hugetlb_folio(), __prep_new_hugetlb_folio() and prep_compound_gigantic_folio_for_demote() functions in mm/hugetlb.c, within the crash_save_vmcoreinfo_init() function in kernel/crash_core.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/2431b5f2650dfc47ce782d1ca7b02d6b3916976f
https://git.kernel.org/stable/c/9fdcc5b6359dfdaa52a55033bf50e2cedd66eb32
https://git.kernel.org/stable/c/d99e3140a4d33e26066183ff727d8f02f56bec64

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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.