ZDI-CAN-17816: Linux Kernel ksmbd Use-After-Free Remote Code Execution Vulnerability
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 validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the kernel.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Kernel-devel |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-17816?
The severity of ZDI-CAN-17816 is critical due to the potential for remote code execution.
How do I fix ZDI-CAN-17816?
To fix ZDI-CAN-17816, ensure that your Linux Kernel is updated to the latest version that addresses this vulnerability.
What systems are affected by ZDI-CAN-17816?
ZDI-CAN-17816 affects systems with the Linux Kernel that have ksmbd enabled.
Is authentication required to exploit ZDI-CAN-17816?
No, authentication is not required to exploit ZDI-CAN-17816.
What can attackers do with ZDI-CAN-17816?
Attackers can execute arbitrary code on affected installations of the Linux Kernel due to ZDI-CAN-17816.
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