IM
IronMonkey Threat Research

CVE-2025-38430 CRITICAL

Published: 2025-07-25 | Last Modified: 2026-07-30 | Status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request If the request being processed is not a v4 compound request, then examining the cstate can have undefined results. This patch adds a check that the rpc procedure being executed (rq_procinfo) is the NFSPROC4_COMPOUND procedure.

Additional Descriptions (1)

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nfsd: nfsd4_spo_must_allow() debe comprobar que se trata de una solicitud compuesta v4. Si la solicitud que se está procesando no es una solicitud compuesta v4, examinar el estado de ejecución (cstate) puede tener resultados indefinidos. Este parche añade una comprobación de que el procedimiento rpc en ejecución (rq_procinfo) es el procedimiento NFSPROC4_COMPOUND.

CVSS Metrics

Base Score: 5.5 (MEDIUM)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 3.6

Weaknesses

Source Type Description
[email protected] Primary
en NVD-CWE-noinfo

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd36b435380> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd31059ca00> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd2dbe0c300> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd348bbf600> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36b8cf9c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd384424680> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd39c4d6580> Operating System
debian debian_linux 11.0 <built-in method update of dict object at 0x7fd31b235540> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References