CVE-2016-4470 – kernel: Uninitialized variable in request_key handling causes kernel crash in error handling path
https://notcve.org/view.php?id=CVE-2016-4470
The key_reject_and_link function in security/keys/key.c in the Linux kernel through 4.6.3 does not ensure that a certain data structure is initialized, which allows local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command. La función key_reject_and_link en security/keys/key.c en el kernel de Linux hasta la versión 4.6.3 no asegura que cierta estructura de datos esté inicializada, lo que permite a usuarios locales provocar una denegación de servicio (caída del sistema) a través de vectores involucrando un comando keyctl request2 manipulado. A flaw was found in the Linux kernel's keyring handling code: the key_reject_and_link() function could be forced to free an arbitrary memory block. An attacker could use this flaw to trigger a use-after-free condition on the system, potentially allowing for privilege escalation. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=38327424b40bcebe2de92d07312c89360ac9229a http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00009.html http://lists.opensuse.org • CWE-253: Incorrect Check of Function Return Value •
CVE-2016-5828 – Kernel: powerpc: tm: crash via exec system call on PPC
https://notcve.org/view.php?id=CVE-2016-5828
The start_thread function in arch/powerpc/kernel/process.c in the Linux kernel through 4.6.3 on powerpc platforms mishandles transactional state, which allows local users to cause a denial of service (invalid process state or TM Bad Thing exception, and system crash) or possibly have unspecified other impact by starting and suspending a transaction before an exec system call. La función start_thread en arch/powerpc/kernel/process.c en el kernel de Linux hasta la versión 4.6.3 en plataformas powerpc no maneja adecuadamente el estado transaccional, lo que permite a usuarios locales provocar una denegación de servicio (estado de proceso inválido o excepción TM Bad Thing y caída de sistema) o posiblemente tener otro impacto no especificado iniciando y suspendiendo una transacción antes de una llamada de sistema exec. A vulnerability in the handling of Transactional Memory on powerpc systems was found. An unprivileged local user can crash the kernel by starting a transaction, suspending it, and then calling any of the exec() class system calls. • http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html http://rhn.redhat.com/errata/RHSA-2016-2574.html http://www.debian.org/security/2016/dsa-3616 http://www.openwall.com/lists/oss-security/2016/06/25/7 http://www.securityfocus.com/bid/91415 http://www.ubuntu.com/usn/USN-3070-1 http://www.ubuntu.com • CWE-20: Improper Input Validation •
CVE-2016-5728
https://notcve.org/view.php?id=CVE-2016-5728
Race condition in the vop_ioctl function in drivers/misc/mic/vop/vop_vringh.c in the MIC VOP driver in the Linux kernel before 4.6.1 allows local users to obtain sensitive information from kernel memory or cause a denial of service (memory corruption and system crash) by changing a certain header, aka a "double fetch" vulnerability. Condición de carrera en la función vop_ioctl en drivers/misc/mic/vop/vop_vringh.c en el controlador MIC VOP en el kernel de Linux en versiones anteriores a 4.6.1 permite a usuarios locales obtener información sensible desde la memoria del kernel o causar una denegación de servicio (corrupción de memoria y caída del sistema) cambiando cierta cabecera, también conocida como vulnerabilidad "double fetch". • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9bf292bfca94694a721449e3fd752493856710f6 http://www.debian.org/security/2016/dsa-3616 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1 http://www.securityfocus.com/archive/1/538802/30/0/threaded http://www.ubuntu.com/usn/USN-3070-1 http://www.ubuntu.com/usn/USN-3070-2 http://www.ubuntu.com/usn/USN-3070-3 http://www.ubuntu.com/usn/USN-3070-4 http://www.ubuntu.com/u • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVE-2016-5829 – kernel: Heap buffer overflow in hiddev driver
https://notcve.org/view.php?id=CVE-2016-5829
Multiple heap-based buffer overflows in the hiddev_ioctl_usage function in drivers/hid/usbhid/hiddev.c in the Linux kernel through 4.6.3 allow local users to cause a denial of service or possibly have unspecified other impact via a crafted (1) HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call. Múltiples desbordamientos de buffer basado en memoria dinámica en la función hiddev_ioctl_usage en drivers/hid/usbhid/hiddev.c en el kernel de Linux hasta la versión 4.6.3 permiten a usuarios locales provocar una denegación de servicio o tener posiblemente otro impacto no especificado a través de una llamada (1) HIDIOCGUSAGES o (2) HIDIOCSUSAGES ioctl manipulada. A heap-based buffer overflow vulnerability was found in the Linux kernel's hiddev driver. This flaw could allow a local attacker to corrupt kernel memory, possible privilege escalation or crashing the system. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=93a2001bdfd5376c3dc2158653034c20392d15c5 http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html http://lists.opensuse.org • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •
CVE-2014-9903
https://notcve.org/view.php?id=CVE-2014-9903
The sched_read_attr function in kernel/sched/core.c in the Linux kernel 3.14-rc before 3.14-rc4 uses an incorrect size, which allows local users to obtain sensitive information from kernel stack memory via a crafted sched_getattr system call. La función sched_read_attr en kernel/sched/core.c en el kernel Linux 3.14-rc en versiones anteriores a 3.14-rc4 usa un tamaño incorrecto, lo que permite a usuarios locales obtener información sensible del kernel de memoria de pila a través de una llamada de sistema sched_getattr manipulada. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4efbc454ba68def5ef285b26ebfcfdb605b52755 http://www.securityfocus.com/bid/91511 https://github.com/torvalds/linux/commit/4efbc454ba68def5ef285b26ebfcfdb605b52755 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •