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CVSS: 7.1EPSS: 0%CPEs: 1EXPL: 0

The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.5.3 does not check whether a slot is a leaf, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (invalid pointer dereference and out-of-bounds read) via an application that uses associative-array data structures, as demonstrated by the keyutils test suite. La función assoc_array_insert_into_terminal_node en lib/assoc_array.c en el kernel de Linux en versiones anteriores a 4.5.3 no comprueba una ranura en una hoja, lo que permite a usuarios locales obtener información sensible de la memoria del núcleo o provocar una denegación de servicio (referencia a un puntero no válido y lectura fuera de rango) a través de una aplicación que utiliza estructuras de datos asociative-array, como lo demuestra el conjunto de pruebas de keyutils. The assoc_array_insert_into_terminal_node() function in 'lib/assoc_array.c' in the Linux kernel before 4.5.3 does not check whether a slot is a leaf, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (invalid pointer dereference and out-of-bounds read) via an application that uses associative-array data structures. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2 http://rhn.redhat.com/errata/RHSA-2016-2574.html http://source.android.com/security/bulletin/2016-11-01.html http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.3 http://www.securityfocus.com/bid/94138 https://github.com/torvalds/linux/commit/8d4a2ec1e0b41b0cf9a0c5cd4511da7f8e4f3de2 https://access.redhat.com/security/cve/CVE-2016-7914 https://bugzilla.redhat.com/show_bug&# • CWE-125: Out-of-bounds Read CWE-476: NULL Pointer Dereference •

CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0

Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete. La condición de carrera en la función environ_read en fs / proc / base.c en el kernel de Linux antes de 4.5.4 permite a usuarios locales obtener información sensible de la memoria del kernel leyendo un archivo / proc / * / environ durante un intervalo de tiempo de configuración del proceso cuya copia de variabilidad de entorno es incompleta. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a73c9901a8794a50f950083c00ccf97d43b3 http://source.android.com/security/bulletin/2016-11-01.html http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4 http://www.securityfocus.com/bid/94138 http://www.ubuntu.com/usn/USN-3159-1 http://www.ubuntu.com/usn/USN-3159-2 https://bugzilla.kernel.org/show_bug.cgi?id=116461 https://forums.grsecurity.net/viewtopic.php?f=3&t=4363 https://gith • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 7.8EPSS: 70%CPEs: 41EXPL: 62

Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW." La condición de carrera en mm / gup.c en el kernel de Linux 2.x a 4.x antes de 4.8.3 permite a los usuarios locales obtener privilegios aprovechando el manejo incorrecto de una función copy-on-write (COW) para escribir en un read- only la cartografía de la memoria, como explotados en la naturaleza en octubre de 2016, vulnerabilidad también conocida como "Dirty COW". A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings. An unprivileged, local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system. Race condition in mm/gup.c in the Linux kernel allows local users to escalate privileges. • https://github.com/dirtycow/dirtycow.github.io https://www.exploit-db.com/exploits/40611 https://www.exploit-db.com/exploits/40838 https://www.exploit-db.com/exploits/40616 https://www.exploit-db.com/exploits/40839 https://www.exploit-db.com/exploits/40847 https://github.com/timwr/CVE-2016-5195 https://github.com/gbonacini/CVE-2016-5195 https://github.com/whu-enjoy/CVE-2016-5195 https://github.com/jas502n/CVE-2016-5195 https://github.com/arttnba3/CVE-2016- • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 7.8EPSS: 0%CPEs: 13EXPL: 0

The arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/arcmsr_hba.c in the Linux kernel through 4.8.2 does not restrict a certain length field, which allows local users to gain privileges or cause a denial of service (heap-based buffer overflow) via an ARCMSR_MESSAGE_WRITE_WQBUFFER control code. La función arcmsr_iop_message_xfer en drivers/scsi/arcmsr/arcmsr_hba.c en el kernel de Linux hasta la versión 4.8.2 no restringe una cierta longitud de campo, lo que permite a usuarios locales obtener privilegios o provocar una denegación de servicio (desbordamiento de búfer basado en memoria dinámica) a través de un código de control ARCMSR_MESSAGE_WRITE_WQBUFFER. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7bc2b55a5c030685b399bb65b6baa9ccc3d1f167 http://marc.info/?l=linux-scsi&m=147394713328707&w=2 http://marc.info/?l=linux-scsi&m=147394796228991&w=2 http://www.openwall.com/lists/oss-security/2016/09/17/2 http://www.securityfocus.com/bid/93037 http://www.ubuntu.com/usn/USN-3144-1 http://www.ubuntu.com/usn/USN-3144-2 http://www.ubuntu.com/usn/USN-3145-1 http://www.ubuntu.com/usn/ • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0

drivers/infiniband/ulp/srpt/ib_srpt.c in the Linux kernel before 4.5.1 allows local users to cause a denial of service (NULL pointer dereference and system crash) by using an ABORT_TASK command to abort a device write operation. drivers/infiniband/ulp/srpt/ib_srpt.c en el kernel de Linux en versiones anteriores a 4.5.1 permite a usuarios locales provocar una denegación de servicio (referencia a puntero NULL y caída de sistema) usando un comando ABORT_TASK para abortar una operación de escritura de dispositivo. System using the infiniband support module ib_srpt were vulnerable to a denial of service by system crash by a local attacker who is able to abort writes to a device using this initiator. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=51093254bf879bc9ce96590400a87897c7498463 http://rhn.redhat.com/errata/RHSA-2016-2574.html http://rhn.redhat.com/errata/RHSA-2016-2584.html http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.1 http://www.openwall.com/lists/oss-security/2016/08/19/5 http://www.securityfocus.com/bid/92549 https://bugzilla.redhat.com/show_bug.cgi?id=1354525 https://github.com/torvalds/linux/commit/51093254bf879bc9c • CWE-476: NULL Pointer Dereference •