Integer underflow in Linux kernel nfsd



| Updated: 2025-05-12
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-50241
CWE-ID CWE-191
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Integer underflow

EUVDB-ID: #VU100197

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-50241

CWE-ID: CWE-191 - Integer underflow

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer underflow within the nfsd4_copy() function in fs/nfsd/nfs4proc.c. A local user can execute arbitrary code.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.10 - 6.11.6

CPE2.3 External links

https://git.kernel.org/stable/c/e30a9a2f69c34a00a3cb4fd45c5d231929e66fb1
https://git.kernel.org/stable/c/63fab04cbd0f96191b6e5beedc3b643b01c15889
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.231
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.174
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.119
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.7
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.63


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.



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