ZDI-CAN-17817: Linux Kernel ksmbd Out-Of-Bounds Read Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Linux Kernel. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of SMB2_WRITE commands. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary 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-17817?
The severity of ZDI-CAN-17817 is considered to be high due to its potential for remote information disclosure.
How do I fix ZDI-CAN-17817?
To fix ZDI-CAN-17817, ensure that you apply the latest patches released for the Linux Kernel addressing this specific vulnerability.
What does ZDI-CAN-17817 affect?
ZDI-CAN-17817 affects installations of the Linux Kernel that handle SMB2_WRITE commands.
Is authentication required to exploit ZDI-CAN-17817?
Yes, authentication is required to exploit ZDI-CAN-17817, which limits the impact to authenticated users.
What information can be disclosed due to ZDI-CAN-17817?
ZDI-CAN-17817 can lead to the disclosure of sensitive information handled by the Linux Kernel during SMB2_WRITE operations.
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