CVSS: 7.8EPSS: 0%CPEs: 13EXPL: 0CVE-2018-5332 – kernel: rds_message_alloc_sgs() function doesn't validate value used during DMA page allocation causes heap out-of-bounds write
https://notcve.org/view.php?id=CVE-2018-5332
In the Linux kernel through 3.2, the rds_message_alloc_sgs() function does not validate a value that is used during DMA page allocation, leading to a heap-based out-of-bounds write (related to the rds_rdma_extra_size function in net/rds/rdma.c). En el kernel de Linux hasta la versión 3.2, la función rds_message_alloc_sgs() no valida un valor empleado durante la asignación de página DMA, lo que conduce a una escritura fuera de límites basada en memoria dinámica (heap), relacionado con la función rds_rdma_extra_size en net/rds/rdma.c In the Linux kernel through 4.14.13, the rds_message_alloc_sgs() function does not validate a value that is used during DMA page allocation, leading to a heap-based out-of-bounds write (related to the rds_rdma_extra_size() function in 'net/rds/rdma.c') and thus to a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c095508770aebf1b9218e77026e48345d719b17c http://www.securityfocus.com/bid/102507 https://access.redhat.com/errata/RHSA-2018:0470 https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=60daca9efbb3e4109ebc1f7069543e5573fc124e https://github.com/torvalds/linux/commit/c095508770aebf1b9218e77026e48345d719b17c https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html https://usn.ubuntu.com/3617-1 https://usn. • CWE-787: Out-of-bounds Write •
CVSS: 7.2EPSS: 0%CPEs: 11EXPL: 0CVE-2017-16532
https://notcve.org/view.php?id=CVE-2017-16532
The get_endpoints function in drivers/usb/misc/usbtest.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted USB device. La función get_endpoints en drivers/usb/misc/usbtest.c en el kernel de Linux, en versiones hasta la 4.13.11, permite que los usuarios locales provoquen una denegación de servicio (desreferencia de puntero NULL y cierre inesperado del sistema) o, posiblemente, causen otros impactos no especificados mediante llamadas del sistema manipuladas. • https://github.com/torvalds/linux/commit/7c80f9e4a588f1925b07134bb2e3689335f6c6d8 https://groups.google.com/d/msg/syzkaller/l3870gs3LhA/y79DYQdFBAAJ https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html https://usn.ubuntu.com/3617-1 https://usn.ubuntu.com/3617-2 https://usn.ubuntu.com/3617-3 https://usn.ubuntu.com/3619-1 https://usn.ubuntu.com/3619-2 https://usn.ubuntu.com/3754-1 • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2017-17448 – kernel: Missing capabilities check in net/netfilter/nfnetlink_cthelper.c allows for unprivileged access to systemwide nfnl_cthelper_list structure
https://notcve.org/view.php?id=CVE-2017-17448
net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations, which allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces. net/netfilter/nfnetlink_cthelper.c en el kernel de Linux hasta la versión 4.14.4 no requiere la capacidad CAP_NET_ADMIN para operaciones "new", "get" y "del", lo que permite que usuarios locales omitan las restricciones de acceso establecidas debido a que la estructura de datos nfnl_cthelper_list se comparte entre todos los espacios de nombres de la red. The net/netfilter/nfnetlink_cthelper.c function in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations. This allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces. • http://www.securityfocus.com/bid/102117 https://access.redhat.com/errata/RHSA-2018:0654 https://access.redhat.com/errata/RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:1062 https://patchwork.kernel.org/patch/10089373 https://usn.ubuntu.com/3617-1 https://usn.ubuntu.com/3617-2 https://usn.ubuntu.com/3617-3 https://usn.ubuntu.com/3619-1 https://usn.ubuntu.com/3619-2 https://usn.ubuntu.com/3620-1 https://usn.ubuntu.com/3620-2 https:&#x • CWE-284: Improper Access Control CWE-862: Missing Authorization •
CVSS: 3.3EPSS: 0%CPEs: 1EXPL: 0CVE-2017-17807 – kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission
https://notcve.org/view.php?id=CVE-2017-17807
The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default request-key keyring" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c. El subsistema KEYS en el kernel de Linux en versiones anteriores a la 4.14.6 omitía una comprobación de control de acceso cuando se agregaba una clave al "llavero de acceso por defecto" de la tarea actual mediante la llamada al sistema request_key(), permitiendo a un usuario local utilizar una secuencia de llamadas de sistema manipuladas para añadir claves a un llavero solo con permiso de búsqueda (no de escritura) a ese llavero. Esto está relacionado con construct_get_dest_keyring() en security/keys/request_key.c. The KEYS subsystem in the Linux kernel omitted an access-control check when writing a key to the current task's default keyring, allowing a local user to bypass security checks to the keyring. This compromises the validity of the keyring for those who rely on it. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4dca6ea1d9432052afb06baf2e3ae78188a4410b http://www.securityfocus.com/bid/102301 https://github.com/torvalds/linux/commit/4dca6ea1d9432052afb06baf2e3ae78188a4410b https://lists.debian.org/debian-lts-announce/2018/01/msg00004.html https://usn.ubuntu.com/3617-1 https://usn.ubuntu.com/3617-2 https://usn.ubuntu.com/3617-3 https://usn.ubuntu.com/3619-1 https://usn.ubuntu.com/3619-2 https://usn.ubuntu.com/3620 • CWE-862: Missing Authorization •
CVSS: 7.8EPSS: 0%CPEs: 22EXPL: 0CVE-2017-17806 – kernel: HMAC implementation does not validate that the underlying cryptographic hash algorithm is unkeyed allowing local attackers to cause denial-of-service
https://notcve.org/view.php?id=CVE-2017-17806
The HMAC implementation (crypto/hmac.c) in the Linux kernel before 4.14.8 does not validate that the underlying cryptographic hash algorithm is unkeyed, allowing a local attacker able to use the AF_ALG-based hash interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm (CONFIG_CRYPTO_SHA3) to cause a kernel stack buffer overflow by executing a crafted sequence of system calls that encounter a missing SHA-3 initialization. La implementación HMAC (crypto/hmac.c) en el kernel de Linux en versiones anteriores a la 4.14.8 no valida que el algoritmo de hash criptográfico subyacente no tenga clave, lo que permite que un atacante local capaz de utilizar la interfaz hash basada en AF_ALG (CONFIG_CRYPTO_USER_API_HASH) y el algoritmo hash basado en SHA-3 (CONFIG_CRYPTO_SHA3) provoque un desbordamiento de búfer de pila de kernel ejecutando una secuencia manipulada de llamadas al sistema para encontrar una inicialización SHA-3 ausente. The HMAC implementation (crypto/hmac.c) in the Linux kernel, before 4.14.8, does not validate that the underlying cryptographic hash algorithm is unkeyed. This allows a local attacker, able to use the AF_ALG-based hash interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm (CONFIG_CRYPTO_SHA3), to cause a kernel stack buffer overflow by executing a crafted sequence of system calls that encounter a missing SHA-3 initialization. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=af3ff8045bbf3e32f1a448542e73abb4c8ceb6f1 http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00006.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00014.html http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00016.html http://www.securityfocus. • CWE-391: Unchecked Error Condition CWE-787: Out-of-bounds Write •