CVE-2023-5345 HIGH

CVE-2023-5345: Use-after-free in Linux kernel's fs/smb/client component

Vendor Linux
Product Kernel
Weakness CWE-416
Published October 3, 2023
Last update February 27, 2025
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve local privilege escalation. In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free. We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705.

Key dates

02Disclosure timeline

October 3, 2023 CVE published
February 27, 2025 Record updated