ZDI-23-706: 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_LOGOFF and SMB2_CLOSE 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 for this Linux Kernel vulnerability?
The vulnerability ID for this Linux Kernel vulnerability is ZDI-23-706.
What is the severity of vulnerability ZDI-23-706?
The severity of vulnerability ZDI-23-706 is high, with a severity value of 8.1.
Is authentication required to exploit vulnerability ZDI-23-706?
No, authentication is not required to exploit vulnerability ZDI-23-706.
Which systems are vulnerable to vulnerability ZDI-23-706?
Only systems with ksmbd enabled are vulnerable to vulnerability ZDI-23-706.
How can I fix vulnerability ZDI-23-706?
The fix for vulnerability ZDI-23-706 can be found in the referenced commit on the Linux Kernel GitHub repository.
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