#VU99219 Input validation error in Linux kernel - CVE-2024-50017

Vulnerability identifier: #VU99219

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-2024-50017

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 ident_pud_init() function in arch/x86/mm/ident_map.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.6 - 6.6.77, 6.10 - 6.10.13, 6.11 - 6.11.2

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External links
https://git.kernel.org/stable/c/d80a99892f7a992d103138fa4636b2c33abd6740
https://git.kernel.org/stable/c/a23823098ab2c277c14fc110b97d8d5c83597195
https://git.kernel.org/stable/c/cc31744a294584a36bf764a0ffa3255a8e69f036
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.14
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.3
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.78

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?