ZDI-CAN-20478: Linux Kernel ksmbd Session Setup Memory Exhaustion Denial-of-Service Vulnerability
First published: Wed May 17 2023(Updated: )
This vulnerability allows remote attackers to create a denial-of-service condition 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 handling of SMB2_SESSION_SETUP commands. The issue results from the lack of control of resource consumption. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
| 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-20478.
What is the title of the vulnerability?
The title of the vulnerability is ZDI-23-695: Linux Kernel ksmbd Session Setup Memory Exhaustion Denial-of-Service Vulnerability.
What is the severity of the vulnerability?
The severity of the vulnerability is high.
Is authentication required to exploit this vulnerability?
No, authentication is not required to exploit this vulnerability.
Which systems are vulnerable to this vulnerability?
Only systems with ksmbd enabled are vulnerable to this vulnerability.
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