CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2023-52458 – block: add check that partition length needs to be aligned with block size
https://notcve.org/view.php?id=CVE-2023-52458
In the Linux kernel, the following vulnerability has been resolved: block: add check that partition length needs to be aligned with block size Before calling add partition or resize partition, there is no check on whether the length is aligned with the logical block size. If the logical block size of the disk is larger than 512 bytes, then the partition size maybe not the multiple of the logical block size, and when the last sector is read, bio_truncate() will adjust the bio size, resulting in an IO error if the size of the read command is smaller than the logical block size.If integrity data is supported, this will also result in a null pointer dereference when calling bio_integrity_free. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bloque: agregar verifique que la longitud de la partición debe estar alineada con el tamaño del bloque Antes de llamar a agregar partición o cambiar el tamaño de la partición, no se verifica si la longitud está alineada con el tamaño del bloque lógico. Si el tamaño del bloque lógico del disco es mayor que 512 bytes, entonces el tamaño de la partición tal vez no sea el múltiplo del tamaño del bloque lógico, y cuando se lea el último sector, bio_truncate() ajustará el tamaño de la biografía, lo que resultará en un error de E/S si el tamaño del comando de lectura es menor que el tamaño del bloque lógico. Si se admiten datos de integridad, esto también resultará en una desreferencia del puntero nulo al llamar a bio_integrity_free. A flaw was found in the Linux kernel's block subsystem, where a NULL pointer dereference occurs if partitions are created or resized with a size that is not a multiple of the logical block size. • https://git.kernel.org/stable/c/8f6dfa1f1efe6dcca2d43e575491d8fcbe922f62 https://git.kernel.org/stable/c/5010c27120962c85d2f421d2cf211791c9603503 https://git.kernel.org/stable/c/ef31cc87794731ffcb578a195a2c47d744e25fb8 https://git.kernel.org/stable/c/cb16cc1abda18a9514106d2ac8c8d7abc0be5ed8 https://git.kernel.org/stable/c/bcdc288e7bc008daf38ef0401b53e4a8bb61bbe5 https://git.kernel.org/stable/c/6f64f866aa1ae6975c95d805ed51d7e9433a0016 https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html https://access.redhat.com/security/cve/CVE-2023 • CWE-476: NULL Pointer Dereference •
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: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2023-52449 – mtd: Fix gluebi NULL pointer dereference caused by ftl notifier
https://notcve.org/view.php?id=CVE-2023-52449
In the Linux kernel, the following vulnerability has been resolved: mtd: Fix gluebi NULL pointer dereference caused by ftl notifier If both ftl.ko and gluebi.ko are loaded, the notifier of ftl triggers NULL pointer dereference when trying to access ‘gluebi->desc’ in gluebi_read(). ubi_gluebi_init ubi_register_volume_notifier ubi_enumerate_volumes ubi_notify_all gluebi_notify nb->notifier_call() gluebi_create mtd_device_register mtd_device_parse_register add_mtd_device blktrans_notify_add not->add() ftl_add_mtd tr->add_mtd() scan_header mtd_read mtd_read_oob mtd_read_oob_std gluebi_read mtd->read() gluebi->desc - NULL Detailed reproduction information available at the Link [1], In the normal case, obtain gluebi->desc in the gluebi_get_device(), and access gluebi->desc in the gluebi_read(). However, gluebi_get_device() is not executed in advance in the ftl_add_mtd() process, which leads to NULL pointer dereference. The solution for the gluebi module is to run jffs2 on the UBI volume without considering working with ftl or mtdblock [2]. Therefore, this problem can be avoided by preventing gluebi from creating the mtdblock device after creating mtd partition of the type MTD_UBIVOLUME. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mtd: corrige la desreferencia del puntero NULL de Gluebi causada por el notificador ftl. Si se cargan tanto ftl.ko como pegamentobi.ko, el notificador de ftl activa la desreferencia del puntero NULL al intentar acceder a 'gluebi-. >desc' en pegamentobi_read(). ubi_gluebi_init ubi_register_volume_notifier ubi_enumerate_volumes ubi_notify_all pegamentobi_notify nb->notifier_call() pegamentobi_create mtd_device_register mtd_device_parse_register add_mtd_device blktrans_notify_add not->add() ftl_add_mtd tr->add_mtd() scan_header mtd_read mtd_read_oob mtd_read_oob_std pegamentobi_read mtd->read() pegamentobi->desc - NULL Información detallada de reproducción disponible en el enlace [1], en el caso normal, obtenga pegamentobi->desc en pegamentobi_get_device() y acceda a pegamentobi->desc en pegamentobi_read(). • https://git.kernel.org/stable/c/2ba3d76a1e29f2ba64fbc762875cf9fb2d4ba2ba https://git.kernel.org/stable/c/aeba358bcc8ffddf9b4a9bd0e5ec9eb338d46022 https://git.kernel.org/stable/c/1bf4fe14e97cda621522eb2f28b0a4e87c5b0745 https://git.kernel.org/stable/c/001a3f59d8c914ef8273461d4bf495df384cc5f8 https://git.kernel.org/stable/c/d8ac2537763b54d278b80b2b080e1652523c7d4c https://git.kernel.org/stable/c/5389407bba1eab1266c6d83e226fb0840cb98dd5 https://git.kernel.org/stable/c/cfd7c9d260dc0a3baaea05a122a19ab91e193c65 https://git.kernel.org/stable/c/b36aaa64d58aaa2f2cbc8275e89bae76a • CWE-476: NULL Pointer Dereference •
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 •