UBUNTU-CVE-2023-32253

A flaw was found in the Linux kernel's ksmbd component. A deadlock is triggered by sending multiple concurrent session setup requests, possibly leading to a denial of service...

UBUNTU-CVE-2023-32255

A flaw was found in the Linux kernel's ksmbd component. A memory leak can occur if a client sends a session setup request with an unknown NTLMSSP message type, potentially leading to resource exhaustion...

DEBIAN-CVE-2023-32256

A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue...

UBUNTU-CVE-2023-32256

A flaw was found in the Linux kernel's ksmbd component. A race condition between smb2 close operation and logoff in multichannel connections could result in a use-after-free issue...

DEBIAN-CVE-2023-32251

A vulnerability has been identified in the Linux kernel's ksmbd component kernel SMB/CIFS server. A security control designed to prevent dictionary attacks, which introduces a 5-second delay during session setup, can be bypassed through the use of asynchronous requests. This bypass negates the...

CVE-2023-32251 Kernel: ksmbd brute force delay bypass via asynchronous requests

A vulnerability has been identified in the Linux kernel's ksmbd component kernel SMB/CIFS server. A security control designed to prevent dictionary attacks, which introduces a 5-second delay during session setup, can be bypassed through the use of asynchronous requests. This bypass negates the...

CVE-2025-38092 ksmbd: use list_first_entry_or_null for opinfo_get_list()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use listfirstentryornull for opinfogetlist The listfirstentry macro never returns NULL. If the list is empty then it returns an invalid pointer. Use listfirstentryornull to check if the list is empty...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fixed the use-of-free issue in session logoff. The sess-user object may currently be used by another thread. For example, if another connection sends a session setup request to make the session available for use. The...

CVE-2025-22041 ksmbd: fix use-after-free in ksmbd_sessions_deregister()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdsessionsderegister In multichannel mode, UAF issue can occur in sessionderegister when the second channel sets up a session through the connection of the first channel. session that is freed...

CVE-2025-22038 ksmbd: validate zero num_subauth before sub_auth is accessed

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate zero numsubauth before subauth is accessed Access psid-subauthpsid-numsubauth - 1 without checking if numsubauth is non-zero leads to an out-of-bounds read. This patch adds a validation step to ensure numsubauth !...

CVE-2023-39180

A flaw was found within the handling of SMB2READ commands in the kernel ksmbd module. The issue results from not releasing memory after its effective lifetime. An attacker can leverage this to create a denial-of-service condition on affected installations of Linux. Authentication is not required ...

CVE-2023-39180

A flaw was found within the handling of SMB2READ commands in the kernel ksmbd module. The issue results from not releasing memory after its effective lifetime. An attacker can leverage this to create a denial-of-service condition on affected installations of Linux. Authentication is not required ...

CVE-2023-39180

A flaw was found within the handling of SMB2READ commands in the kernel ksmbd module. The issue results from not releasing memory after its effective lifetime. An attacker can leverage this to create a denial-of-service condition on affected installations of Linux. Authentication is not required ...

DEBIAN-CVE-2023-39176

A flaw was found within the parsing of SMB2 requests that have a transform header in the kernel ksmbd module. 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 to disclose...

CVE-2023-39176

A flaw was found within the parsing of SMB2 requests that have a transform header in the kernel ksmbd module. 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 to disclose...

UBUNTU-CVE-2023-39180

A flaw was found within the handling of SMB2READ commands in the kernel ksmbd module. The issue results from not releasing memory after its effective lifetime. An attacker can leverage this to create a denial-of-service condition on affected installations of Linux. Authentication is not required ...

CVE-2023-39179 Kernel: ksmbd: read request out-of-bounds read information disclosure vulnerability

A flaw was found within the handling of SMB2 read requests in the kernel ksmbd module. 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 to disclose sensitive information on...

CVE-2023-39176 Kernel: ksmbd: transform header out-of-bounds read information disclosure vulnerability

A flaw was found within the parsing of SMB2 requests that have a transform header in the kernel ksmbd module. 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 to disclose...

CVE-2023-39176 Kernel: ksmbd: transform header out-of-bounds read information disclosure vulnerability

A flaw was found within the parsing of SMB2 requests that have a transform header in the kernel ksmbd module. 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 to disclose...

PT-2024-12777 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux Kernel ksmbd affected versions not specified Description: A flaw was found in the handling of SMB2 read requests in the kernel ksmbd module. The issue results from the lack of proper validation of user-supplied data, which can result in...