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CVE-2026-64379

Опубликовано: 25 июл. 2026
Источник: redhat
CVSS3: 7

Описание

A flaw was found in the Linux kernel's Server Message Block (SMB) client. When processing server-provided file mode information, the system incorrectly applies these modes without proper security masking. This can result in unintended file permissions, potentially allowing unauthorized access to files or directories.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelAffected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelAffected
Red Hat Enterprise Linux 8kernel-rtAffected
Red Hat Enterprise Linux 9kernelAffected
Red Hat Enterprise Linux 9kernel-rtAffected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-279
https://bugzilla.redhat.com/show_bug.cgi?id=2507135kernel: smb: client: mask server-provided mode to 07777 in modefromsid

7 High

CVSS3

Связанные уязвимости

CVSS3: 7.1
ubuntu
7 дней назад

In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid When modefromsid is active, parse_dacl() applies the server-provided sub_auth[2] value from the NFS mode SID to cf_mode without masking to 07777. Apply the correct masking, same as in the read path.

CVSS3: 7.1
nvd
7 дней назад

In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid When modefromsid is active, parse_dacl() applies the server-provided sub_auth[2] value from the NFS mode SID to cf_mode without masking to 07777. Apply the correct masking, same as in the read path.

msrc
6 дней назад

smb: client: mask server-provided mode to 07777 in modefromsid

CVSS3: 7.1
debian
7 дней назад

In the Linux kernel, the following vulnerability has been resolved: s ...

CVSS3: 7.1
github
7 дней назад

In the Linux kernel, the following vulnerability has been resolved: smb: client: mask server-provided mode to 07777 in modefromsid When modefromsid is active, parse_dacl() applies the server-provided sub_auth[2] value from the NFS mode SID to cf_mode without masking to 07777. Apply the correct masking, same as in the read path.

7 High

CVSS3