ZDI-23-705: Linux Kernel ksmbd Session Race Condition Remote Code Execution Vulnerability
First published: Wed May 17 2023(Updated: )
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable. The specific flaw exists within the processing of SMB2_SESSION_SETUP and SMB2_LOGOFF commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.
| Affected Software | Affected Version | How to fix |
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Reference Links
Frequently Asked Questions
What is ZDI-23-705?
ZDI-23-705 is a vulnerability in the Linux Kernel that allows remote attackers to execute arbitrary code on affected installations.
What is the severity of ZDI-23-705?
ZDI-23-705 has a severity rating of 8.1, which is considered high.
How can this vulnerability be exploited?
This vulnerability can be exploited by remote attackers without authentication, but only systems with ksmbd enabled are vulnerable.
How do I fix ZDI-23-705?
To fix ZDI-23-705, users should apply the necessary patches or updates provided by Linux Kernel.
Where can I find more information about ZDI-23-705?
You can find more information about ZDI-23-705 at the Zero Day Initiative website or the GitHub repository for Linux Kernel.
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