ZDI-CAN-20592: Linux Kernel ksmbd Tree Connection 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_TREE_DISCONNECT 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 the vulnerability ID?
The vulnerability ID is ZDI-CAN-20592.
What is the title of the vulnerability?
The title of the vulnerability is ZDI-23-702: Linux Kernel ksmbd Tree Connection Race Condition Remote Code Execution Vulnerability.
What is the severity of the vulnerability?
The severity of the vulnerability is critical with a severity value of 9.
Which systems are affected by this vulnerability?
Only systems with ksmbd enabled are vulnerable.
Is authentication required to exploit this vulnerability?
No, authentication is not required to exploit this vulnerability.
Is there a fix available for this vulnerability?
Yes, a fix for this vulnerability is available. Please refer to the provided references for more information.
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