CVE-2023-25564

Gravedad CVSS v3.1:

ALTA

Tipo:

CWE-787 Escritura fuera de límites

Fecha de publicación:

14/02/2023

Última modificación:

22/02/2023

Descripción

*** Pendiente de traducción *** GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, memory corruption can be triggered when decoding UTF16 strings. The variable `outlen` was not initialized and could cause writing a zero to an arbitrary place in memory if `ntlm_str_convert()` were to fail, which would leave `outlen` uninitialized. This can lead to a denial of service if the write hits unmapped memory or randomly corrupts a byte in the application memory space. This vulnerability can trigger an out-of-bounds write, leading to memory corruption. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This issue is fixed in version 1.2.0.

Impacto

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS v3.1 Severidad y Métricas:

Puntuación base: 8.20 ALTA
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Vector de acceso (AV): A través de red
Complejidad de acceso (AC): Bajo
Privilegios Requeridos (PR): Ninguno
Interacción del usuario (UI): Ninguno
Alcance (S): Sin modificar
Impacto a la confidencialidad (C): Ninguno
Impacto a la integridad (I): Bajo
Impacto a la disponibilidad (A): Alto