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Vulnerability DatabaseCVE-2023-53358
CVE-2023-53358:
Linux Debian vulnerability analysis and mitigation
Overview
In the Linux kernel, a vulnerability has been identified and resolved involving a race condition in the ksmbd module during concurrent SMB2 tree disconnect operations. The vulnerability was assigned CVE-2023-53358 and was published on September 17, 2025 (NVD).
Technical details
The vulnerability involves a Use-After-Free (UAF) issue that occurs under concurrent SMB2 tree disconnect operations. To address this vulnerability, a TREECONNEXPIRE flag was introduced for tcon to prevent concurrent access (Ubuntu).
Impact
The vulnerability affects various Linux kernel versions and has been rated as Medium priority by Ubuntu. Multiple Linux distributions and versions are impacted, including Ubuntu 22.04 LTS and 20.04 LTS, where fixes have been implemented (Ubuntu).
Mitigation and workarounds
Fixes have been released for affected systems. Ubuntu has released patches for various kernel versions, including linux-hwe-5.15 (5.15.0-102.112~20.04.1) for 20.04 LTS and linux (5.15.0-102.112) for 22.04 LTS (Ubuntu).
Additional resources
Source: This report was generated using AI
Related Linux Debian vulnerabilities:
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