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SUSE-SU-2026:2700-1

Опубликовано: 30 июн. 2026
Источник: suse-cvrf

Описание

Security update for cifs-utils

This update for cifs-utils fixes the following issue

  • CVE-2026-12505: cifs.upcall local privilege escalation via request_key-controlled namespace switch and NSS loading (bsc#1267389).

Список пакетов

SUSE Linux Enterprise Server 12 SP5-LTSS
cifs-utils-6.9-13.26.1
cifs-utils-devel-6.9-13.26.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5
cifs-utils-6.9-13.26.1
cifs-utils-devel-6.9-13.26.1

Ссылки

Описание

A flaw was found in the cifs-utils package where the cifs.upcall helper fails to securely drop its root privileges before looking up user information inside a user-controlled environment. A local, low privileged attacker can exploit this by using a crafted request_key payload to trick the root-owned helper into entering a custom environment (namespace) containing a malicious NSS module. This forces the system to load the attacker's controlled NSS Module and configuration, allowing them to execute arbitrary commands as the root user, elevating their privileges and fully compromising the system.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-6.9-13.26.1
SUSE Linux Enterprise Server 12 SP5-LTSS:cifs-utils-devel-6.9-13.26.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cifs-utils-6.9-13.26.1
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:cifs-utils-devel-6.9-13.26.1
Ссылки