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CVSS: 2.1EPSS: 0%CPEs: 6EXPL: 0

drivers/xen/usbback/usbback.c in linux-2.6.18-xen-3.4.0 (aka the Xen 3.4.x support patches for the Linux kernel 2.6.18), as used in the Linux kernel 2.6.x and 3.x in SUSE Linux distributions, allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory via unspecified vectors. drivers/xen/usbback/usbback.c en linux-2.6.18-xen-3.4.0 (también conocido como los parches de soporte Xen 3.4.x para el kernel de Linux 2.6.18), utilizado en el kernel de Linux 2.6.x y 3.x en SUSE Linux distributions, permite a usuarios del sistema operativo invitado obtener información sensible de localizaciones no inicializadas en la memoria del kernel del sistema operativo anfitrión a través de vectores no especificados. • http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html http://www.securityfocus.com/bid/73921 https://bugzilla.novell.com/show_bug.cgi?id=917830 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 7.8EPSS: 9%CPEs: 8EXPL: 0

The IPv4 implementation in the Linux kernel before 3.18.8 does not properly consider the length of the Read-Copy Update (RCU) grace period for redirecting lookups in the absence of caching, which allows remote attackers to cause a denial of service (memory consumption or system crash) via a flood of packets. La implementación IPv4 en el kernel de Linux anterior a 3.18.8 no considera correctamente la longitud del periodo de gracia de Read-Copy Update (RCU) para redirigir búsquedas en la ausencia de cacheo, lo que permite a atacantes remotos causar una denegación de servicio (corrupción de memoria o caída de sistema) a través de una inundación de paquetes. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=df4d92549f23e1c037e83323aff58a21b3de7fe0 http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.8 http://www.openwall.com/lists/oss-security/2015/02/03/13 http://www.securityfocus.com& • CWE-17: DEPRECATED: Code •

CVSS: 4.9EPSS: 0%CPEs: 32EXPL: 0

Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers, which might allow local guest OS users to cause a denial of service (non-maskable interrupt and host crash) by disabling the (1) memory or (2) I/O decoding for a PCI Express device and then accessing the device, which triggers an Unsupported Request (UR) response. Xen 3.3.x hasta la versión 4.5.x y en el kernel de Linux hasta la versión 3.19.1 no restringe adecuadamente el acceso al registro de comandos PCI, lo que podría permitir a usuarios locales del SO invitados provocar una denegación de servicio (interrupción no enmascarable y caída del host) deshabilitando (1) la memoria o (2) la descodificación I/O para un dispositivo PCI Express posteriormente accediendo al dispositivo, lo que desencadena una respuesta Unsupported Request (UR). • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=af6fc858a35b90e89ea7a7ee58e66628c55c776b http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155804.html http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155854.html http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155908.html http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152747.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00001.html http • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 6.9EPSS: 0%CPEs: 14EXPL: 0

The InfiniBand (IB) implementation in the Linux kernel package before 2.6.32-504.12.2 on Red Hat Enterprise Linux (RHEL) 6 does not properly restrict use of User Verbs for registration of memory regions, which allows local users to access arbitrary physical memory locations, and consequently cause a denial of service (system crash) or gain privileges, by leveraging permissions on a uverbs device under /dev/infiniband/. La implementación InfiniBand (IB) en el paquete del kernel de Linux anterior a 2.6.32-504.12.2 en Red Hat Enterprise Linux (RHEL) 6 no restringe adecuadamente el uso de User Verbs para el registro de regiones de memoria, lo que permite a usaurios locales acceder de forma arbitraria a ubicaciones de la memoria física, y consecuentemente causar una denegación de servicio (caída del sistema) u obtener privilegios, aprovechando permisos en un dispositivo uverbs bajo /dev/infiniband/. It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the (u)verbs API. A local user with access to a /dev/infiniband/uverbsX device could use this flaw to crash the system or, potentially, escalate their privileges on the system. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152747.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg0001 • CWE-190: Integer Overflow or Wraparound CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 7.2EPSS: 0%CPEs: 1EXPL: 0

The XFS implementation in the Linux kernel before 3.15 improperly uses an old size value during remote attribute replacement, which allows local users to cause a denial of service (transaction overrun and data corruption) or possibly gain privileges by leveraging XFS filesystem access. La implementación XFS en el Kernel de Linux anterior a 3.15 utiliza inadecuadamente un valor de tamaño antiguo durante el reemplazo del atributo remoto, lo que permite a usuarios locales causar una denegación de servicio (transacción de saturación y corrupción de datos) o la posibilidad de obtener privilegios aprovechando el acceso al sistema de archivos XFS. A flaw was found in the way the Linux kernel's XFS file system handled replacing of remote attributes under certain conditions. A local user with access to XFS file system mount could potentially use this flaw to escalate their privileges on the system. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59 http://rhn.redhat.com/errata/RHSA-2015-0290.html http://rhn.redhat.com/errata/RHSA-2015-0694.html http://www.securitytracker.com/id/1031853 http://www.ubuntu.com/usn/USN-2543-1 http://www.ubuntu.com/usn/USN-2544-1 https://bugzilla.redhat.com/show_bug.cgi?id=1195248 https://github.com/torvalds/linux/commit/8275cdd0e7ac550dcce2b3ef6d2fb3b808c1ae59 https://access.re • CWE-19: Data Processing Errors •