IM
IronMonkey Threat Research

CVE-2024-50188 HIGH

Published: 2024-11-08 | Last Modified: 2026-08-04 | Status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: net: phy: dp83869: fix memory corruption when enabling fiber When configuring the fiber port, the DP83869 PHY driver incorrectly calls linkmode_set_bit() with a bit mask (1 << 10) rather than a bit number (10). This corrupts some other memory location -- in case of arm64 the priv pointer in the same structure. Since the advertising flags are updated from supported at the end of the function the incorrect line isn't needed at all and can be removed.

Additional Descriptions (1)

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: phy: dp83869: se corrige la corrupción de memoria al habilitar la fibra Al configurar el puerto de fibra, el controlador PHY DP83869 llama incorrectamente a linkmode_set_bit() con una máscara de bits (1 &lt;&lt; 10) en lugar de un número de bit (10). Esto corrompe alguna otra ubicación de memoria; en el caso de arm64, el puntero priv en la misma estructura. Dado que los indicadores de publicidad se actualizan desde supported al final de la función, la línea incorrecta no es necesaria en absoluto y se puede eliminar.

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 0x7fd36ad59340> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36b118780> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36b554280> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd3855d88c0> Operating System
linux linux_kernel * <built-in method update of dict object at 0x7fd36ad59280> Operating System
linux linux_kernel 6.12 <built-in method update of dict object at 0x7fd36ad58380> Operating System
linux linux_kernel 6.12 <built-in method update of dict object at 0x7fd31b0e6940> 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:6.12:rc1:*:*:*:*:*:*
Yes cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*

References