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CVSS: 10.0EPSS: 0%CPEs: 33EXPL: 0

10 Nov 2015 — The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #AC (aka Alignment Check) exceptions, related to svm.c and vmx.c. El subsistema KVM en el kernel Linux hasta la versión 4.2.6, y Xen 4.3.x hasta la versión 4.6.x permite a usuarios del SO invitados causar una denegación de servicio (panic en el host del SO o cuelgue) desencandenando muchas excepciones #AC (también conocidas como Align... • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=54a20552e1eae07aa240fa370a0293e006b5faed • CWE-399: Resource Management Errors CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVSS: 9.8EPSS: 0%CPEs: 6EXPL: 0

30 Oct 2015 — Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of (1) HYPERVISOR_physdev_op hypercalls, which are not properly handled in the do_physdev_op function in arch/arm/physdev.c, or (2) HYPERVISOR_hvm_op hypercalls, which are not properly handled in the do_hvm_op function in arch/arm/hvm.c. Xen 4.4.x, 4.5.x y 4.6.x no limita el número de mensajes de la consola printk cuan... • http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html • CWE-399: Resource Management Errors •

CVSS: 4.7EPSS: 0%CPEs: 1EXPL: 0

30 Oct 2015 — Race condition in the relinquish_memory function in arch/arm/domain.c in Xen 4.6.x and earlier allows local domains with partial management control to cause a denial of service (host crash) via vectors involving the destruction of a domain and using XENMEM_decrease_reservation to reduce the memory of the domain. Condición de carrera en la función relinquish_memory en arch/arm/domain.c en Xen 4.6.x y versiones anteriores permite a dominios locales con control parcial de la gestión provocar una denegación de ... • http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 7.8EPSS: 0%CPEs: 30EXPL: 0

30 Oct 2015 — The mod_l2_entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping. La función mod_l2_entry en arch/x86/mm.c en Xen 3.4 hasta la versión 4.6.x no valida correctamente las entradas de la tabla de paginación de nivel 2, lo que permite a administradores invitados PV locales obtener privilegios a través de un mapeo de superpage manipulado. It was discovered that t... • http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html • CWE-20: Improper Input Validation CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 9.8EPSS: 0%CPEs: 25EXPL: 0

30 Oct 2015 — Multiple memory leaks in Xen 4.0 through 4.6.x allow local guest administrators or domains with certain permission to cause a denial of service (memory consumption) via a large number of "teardowns" of domains with the vcpu pointer array allocated using the (1) XEN_DOMCTL_max_vcpus hypercall or the xenoprofile state vcpu pointer array allocated using the (2) XENOPROF_get_buffer or (3) XENOPROF_set_passive hypercall. Fugas de memoria múltiples en Xen 4.0 hasta la versión 4.6.x permite a administradores local... • http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html • CWE-399: Resource Management Errors •

CVSS: 6.2EPSS: 0%CPEs: 37EXPL: 0

30 Oct 2015 — Xen 3.2.x through 4.6.x does not limit the number of printk console messages when logging certain pmu and profiling hypercalls, which allows local guests to cause a denial of service via a sequence of crafted (1) HYPERCALL_xenoprof_op hypercalls, which are not properly handled in the do_xenoprof_op function in common/xenoprof.c, or (2) HYPERVISOR_xenpmu_op hypercalls, which are not properly handled in the do_xenpmu_op function in arch/x86/cpu/vpmu.c. Xen 3.2.x hasta la versión 4.6.x no limita el número de m... • http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html • CWE-19: Data Processing Errors •

CVSS: 5.5EPSS: 0%CPEs: 30EXPL: 0

30 Oct 2015 — The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure." La función (1) libxl_set_memory_target en tools/libxl/libxl.c y (2) libxl__build_post en tools/libxl/libxl_dom.c en Xen 3.4.x hast... • http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html • CWE-399: Resource Management Errors •

CVSS: 6.5EPSS: 0%CPEs: 23EXPL: 0

01 Oct 2015 — libxl in Xen 4.1.x through 4.6.x does not properly handle the readonly flag on disks when using the qemu-xen device model, which allows local guest users to write to a read-only disk image. libxl en Xen 4.1.x hasta la versión 4.6.x no maneja correctamente el indicador de solo lectura en los discos cuando se utiliza el dispositivo modelo qemu-xen, lo que permite a usuarios invitados locales escribir a una imagen de disco de sólo lectura. Multiple security issues have been found in the Xen virtualisation solu... • http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167077.html • CWE-17: DEPRECATED: Code •

CVSS: 3.5EPSS: 0%CPEs: 30EXPL: 0

21 Sep 2015 — The process_tx_desc function in hw/net/e1000.c in QEMU before 2.4.0.1 does not properly process transmit descriptor data when sending a network packet, which allows attackers to cause a denial of service (infinite loop and guest crash) via unspecified vectors. La función process_tx_desc en el archivo hw/net/e1000.c en QEMU versiones anteriores a 2.4.0.1, no procesa apropiadamente los datos del descriptor de transmisión cuando se envía un paquete de red, lo que permite a atacantes causar una denegación de se... • http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0

03 Sep 2015 — The xenmem_add_to_physmap_one function in arch/arm/mm.c in Xen 4.5.x, 4.4.x, and earlier does not limit the number of printk console messages when reporting a failure to retrieve a reference on a foreign page, which allows remote domains to cause a denial of service by leveraging permissions to map the memory of a foreign guest. Vulnerabilidad en la función xenmem_add_to_physmap_one en arch/arm/mm.c en Xen 4.5.x, 4.4.x y en versiones anteriores no limita el número de mensajes de la consola de printk al info... • http://www.debian.org/security/2015/dsa-3414 • CWE-264: Permissions, Privileges, and Access Controls •