ZDI-23-979: Linux Kernel ksmbd Chained Request NULL Pointer Dereference Denial-of-Service Vulnerability
First published: Thu Jul 20 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 chained requests. The issue results from dereferencing a NULL pointer. 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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Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is ZDI-23-979.
What is the severity of ZDI-23-979?
The severity of ZDI-23-979 is medium (5.9).
What is affected by ZDI-23-979?
This vulnerability affects installations of Linux Kernel with ksmbd enabled.
Is authentication required to exploit ZDI-23-979?
No, authentication is not required to exploit ZDI-23-979.
How can this vulnerability be exploited?
Remote attackers can create a denial-of-service condition on affected installations of Linux Kernel with ksmbd enabled by exploiting this vulnerability.
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