CVSS: 9.3EPSS: 0%CPEs: 5EXPL: 0CVE-2024-26594 – ksmbd: validate mech token in session setup
https://notcve.org/view.php?id=CVE-2024-26594
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate mech token in session setup If client send invalid mech token in session setup request, ksmbd validate and make the error if it is invalid. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ksmbd: validar el token mecánico en la configuración de la sesión Si el cliente envía un token mecánico no válido en la solicitud de configuración de la sesión, ksmbd valida y genera el error si no es válido. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability. However, only systems with ksmbd enabled are vulnerable. The specific flaw exists within the handling of SMB2 Mech Tokens. • https://git.kernel.org/stable/c/dd1de9268745f0eac83a430db7afc32cbd62e84b https://git.kernel.org/stable/c/6eb8015492bcc84e40646390e50a862b2c0529c9 https://git.kernel.org/stable/c/a2b21ef1ea4cf632d19b3a7cc4d4245b8e63202a https://git.kernel.org/stable/c/5e6dfec95833edc54c48605a98365a7325e5541e https://git.kernel.org/stable/c/92e470163d96df8db6c4fa0f484e4a229edb903d • CWE-125: Out-of-bounds Read •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2023-52445 – media: pvrusb2: fix use after free on context disconnection
https://notcve.org/view.php?id=CVE-2023-52445
In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix use after free on context disconnection Upon module load, a kthread is created targeting the pvr2_context_thread_func function, which may call pvr2_context_destroy and thus call kfree() on the context object. However, that might happen before the usb hub_event handler is able to notify the driver. This patch adds a sanity check before the invalid read reported by syzbot, within the context disconnection call stack. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: medios: pvrusb2: corrige el use after free de desconexión de contexto. Al cargar el módulo, se crea un kthread dirigido a la función pvr2_context_thread_func, que puede llamar a pvr2_context_destroy y, por lo tanto, llamar a kfree() en el objeto de contexto. • https://git.kernel.org/stable/c/e5be15c63804e05b5a94197524023702a259e308 https://git.kernel.org/stable/c/ec36c134dd020d28e312c2f1766f85525e747aab https://git.kernel.org/stable/c/47aa8fcd5e8b5563af4042a00f25ba89bef8f33d https://git.kernel.org/stable/c/3233d8bf7893550045682192cb227af7fa3defeb https://git.kernel.org/stable/c/ec3634ebe23fc3c44ebc67c6d25917300bc68c08 https://git.kernel.org/stable/c/30773ea47d41773f9611ffb4ebc9bda9d19a9e7e https://git.kernel.org/stable/c/2cf0005d315549b8d2b940ff96a66c2a889aa795 https://git.kernel.org/stable/c/437b5f57732bb4cc32cc9f8895d2010ee • CWE-416: Use After Free •
CVSS: 9.3EPSS: 0%CPEs: 4EXPL: 0CVE-2023-52442 – ksmbd: validate session id and tree id in compound request
https://notcve.org/view.php?id=CVE-2023-52442
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate session id and tree id in compound request `smb2_get_msg()` in smb2_get_ksmbd_tcon() and smb2_check_user_session() will always return the first request smb2 header in a compound request. if `SMB2_TREE_CONNECT_HE` is the first command in compound request, will return 0, i.e. The tree id check is skipped. This patch use ksmbd_req_buf_next() to get current command in compound. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ksmbd: validar la identificación de la sesión y la identificación del árbol en la solicitud compuesta `smb2_get_msg()` en smb2_get_ksmbd_tcon() y smb2_check_user_session() siempre devolverá el encabezado smb2 de la primera solicitud en una solicitud compuesta. si `SMB2_TREE_CONNECT_HE` es el primer comando en la solicitud compuesta, devolverá 0, es decir, se omite la verificación de identificación del árbol. Este parche usa ksmbd_req_buf_next() para obtener el comando actual en compuesto. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Linux Kernel. • https://git.kernel.org/stable/c/017d85c94f02090a87f4a473dbe0d6ee0da72693 https://git.kernel.org/stable/c/becb5191d1d5fdfca0198a2e37457bbbf4fe266f https://git.kernel.org/stable/c/4c2b350b2e269e3fd17bbfa42de1b42775b777ac https://git.kernel.org/stable/c/3df0411e132ee74a87aa13142dfd2b190275332e •
CVSS: 8.6EPSS: 0%CPEs: 4EXPL: 0CVE-2023-52441 – ksmbd: fix out of bounds in init_smb2_rsp_hdr()
https://notcve.org/view.php?id=CVE-2023-52441
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds in init_smb2_rsp_hdr() If client send smb2 negotiate request and then send smb1 negotiate request, init_smb2_rsp_hdr is called for smb1 negotiate request since need_neg is set to false. This patch ignore smb1 packets after ->need_neg is set to false. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ksmbd: corrección fuera de los límites en init_smb2_rsp_hdr() Si el cliente envía una solicitud de negociación smb2 y luego envía una solicitud de negociación smb1, se llama a init_smb2_rsp_hdr para la solicitud de negociación smb1 ya que need_neg está configurado en falso. Este parche ignora los paquetes smb1 después de que ->need_neg se establece en falso. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Linux Kernel. • https://git.kernel.org/stable/c/5c0df9d30c289d6b9d7d44e2a450de2f8e3cf40b https://git.kernel.org/stable/c/330d900620dfc9893011d725b3620cd2ee0bc2bc https://git.kernel.org/stable/c/aa669ef229ae8dd779da9caa24e254964545895f https://git.kernel.org/stable/c/536bb492d39bb6c080c92f31e8a55fe9934f452b • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 9.0EPSS: 0%CPEs: 5EXPL: 0CVE-2023-52440 – ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()
https://notcve.org/view.php?id=CVE-2023-52440
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() If authblob->SessionKey.Length is bigger than session key size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes. cifs_arc4_crypt copy to session key array from SessionKey from client. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ksmbd: corrige el desbordamiento de slub en ksmbd_decode_ntlmssp_auth_blob() Si authblob->SessionKey.Length es mayor que el tamaño de la clave de sesión (CIFS_KEY_SIZE), puede ocurrir un desbordamiento de slub en los códigos de intercambio de claves. cifs_arc4_crypt copia a la matriz de claves de sesión desde SessionKey del cliente. 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 session keys. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. • https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809 https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4 https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20 https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •