What is the vulnerability ID for this vulnerability?

The vulnerability ID for this vulnerability is ZDI-CAN-20596.

What is the title of this vulnerability?

The title of this vulnerability is ZDI-23-705: Linux Kernel ksmbd Session Race Condition Remote Code Execution Vulnerability.

What is the severity of ZDI-CAN-20596?

The severity of ZDI-CAN-20596 is high with a CVSS score of 8.1.

How can this vulnerability be exploited?

Remote attackers can exploit this vulnerability to execute arbitrary code on affected installations of Linux Kernel.

Which systems are vulnerable to ZDI-CAN-20596?

Only systems with ksmbd enabled are vulnerable to ZDI-CAN-20596.

Is authentication required to exploit ZDI-CAN-20596?

No, authentication is not required to exploit ZDI-CAN-20596.

Where can I find more information about ZDI-CAN-20596?

You can find more information about ZDI-CAN-20596 at the Zero Day Initiative website: http://www.zerodayinitiative.com/advisories/ZDI-CAN-20596/

Vulnerability/
ZDI-CAN-20596

high

8.1

17/5/2023

16/1/2024

ZDI-CAN-20596: 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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Frequently Asked Questions

What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is ZDI-CAN-20596.
What is the title of this vulnerability?
The title of this vulnerability is ZDI-23-705: Linux Kernel ksmbd Session Race Condition Remote Code Execution Vulnerability.
What is the severity of ZDI-CAN-20596?
The severity of ZDI-CAN-20596 is high with a CVSS score of 8.1.
How can this vulnerability be exploited?
Remote attackers can exploit this vulnerability to execute arbitrary code on affected installations of Linux Kernel.
Which systems are vulnerable to ZDI-CAN-20596?
Only systems with ksmbd enabled are vulnerable to ZDI-CAN-20596.
Is authentication required to exploit ZDI-CAN-20596?
No, authentication is not required to exploit ZDI-CAN-20596.
Where can I find more information about ZDI-CAN-20596?
You can find more information about ZDI-CAN-20596 at the Zero Day Initiative website: http://www.zerodayinitiative.com/advisories/ZDI-CAN-20596/

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collector/zdi-advisory
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alias/ZDI-23-705
alias/ZDI-CAN-20596
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collector/zdi-published
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