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CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0

10 Sep 2012 — XENMEM_populate_physmap in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when translating paging mode is not used, allows local PV OS guest kernels to cause a denial of service (BUG triggered and host crash) via invalid flags such as MEMF_populate_on_demand. XENMEM_populate_physmap en Xen v4.0, v4.1, y v4.2, y Citrix XenServer v6.0.2 y anteriores, cuando el modo de traducción de página no se utiliza, permite a los kernels locales PV del SO invitado causar una denegación de servicio (caída d... • http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html • CWE-16: Configuration •

CVSS: 9.8EPSS: 0%CPEs: 33EXPL: 0

05 Sep 2012 — Qemu, as used in Xen 4.0, 4.1 and possibly other products, when emulating certain devices with a virtual console backend, allows local OS guest users to gain privileges via a crafted escape VT100 sequence that triggers the overwrite of a "device model's address space." Qemu, tal como se utiliza en Xen v4.0, v4.1 y posiblemente otros productos, al emular ciertos dispositivos con una consola virtual, permite a los usuarios locales del SO invitado obtener privilegios a través de una secuencia VT100 de escape m... • http://git.qemu.org/?p=qemu-stable-0.15.git%3Ba=log • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0

27 Aug 2012 — Xen 4.0 through 4.2, when running 32-bit x86 PV guests on 64-bit hypervisors, allows local guest OS administrators to cause a denial of service (infinite loop and hang or crash) via invalid arguments to GNTTABOP_get_status_frames, aka "Grant table hypercall infinite loop DoS vulnerability." Xen 4.0 hasta 4.2, al ejecutar clientes 32-bit x86 PV en hipervisores 64-bit, permite a los administradores locales del sistema operativo cliente causar una denegación de servicio (bucle infinito y cuelgue o caída) a tra... • http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html • CWE-399: Resource Management Errors •

CVSS: 6.5EPSS: 1%CPEs: 11EXPL: 1

20 Aug 2012 — The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x, when running an HVM guest, does not properly reset certain state information between emulation cycles, which allows local guest OS users to cause a denial of service (guest OS crash) via unspecified operations on MMIO regions. La función handle_mmio en arch/x86/hvm/io.c en el emulador de operaciones MMIO para Xen v3.3 y v4.x, cuando se ejecuta un HVM huesped, no reinicia correctamente la información de estado ... • http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0

20 Aug 2012 — Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service (domain 0 VCPU hang and kernel panic) by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown. Xen v4.0 y v4.1 permite a los kernels OS locales HVM de invitado causar una denegación de servicio (cuelgue de dominio 0 VCPU y "kernel panic") mediante la modificación del espacio de direcciones físicas de una forma que provoca exceso de tiempo de búsqueda de página compa... • http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html • CWE-399: Resource Management Errors •

CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0

31 Jul 2012 — The PyGrub boot loader in Xen unstable before changeset 25589:60f09d1ab1fe, 4.2.x, and 4.1.x allows local para-virtualized guest users to cause a denial of service (memory consumption) via a large (1) bzip2 or (2) lzma compressed kernel image. El gestor de arranque Pygrub en Xen inestable ante del changeset 25589:60f09d1ab1fe, v4.2.x, v4.1.x permite causar una denegación de servicio (consumo de memoria) a usuarios locales para-virtualizados a través de una imagen del kernel comprimida en (1) o bzip2 (2) lzm... • http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1817 • CWE-20: Improper Input Validation •

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

24 Jun 2012 — Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen. Xen v3.4, v4.0 y v4.1, cuando en el sistema operativo huésped no se ha registrado un controlador para una instrucción syscall o sysenter, no limpia c... • http://lists.xen.org/archives/html/xen-announce/2012-06/msg00003.html •

CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0

12 Jun 2012 — Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217. Xen v4.0 y v4.1, cuando se ejecuta un cliente PV de 64-bit en CPUs AMD "antiguas", no protege adecuadamente contra un determiando fallo del procesador AMD, lo que permite a usuarios de... • http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html •

CVSS: 7.9EPSS: 88%CPEs: 20EXPL: 5

12 Jun 2012 — The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and other products; Oracle Solaris 11 and earlier; illumos before r13724; Joyent SmartOS before 20120614T184600Z; FreeBSD before 9.0-RELEASE-p3; NetBSD 6.0 Beta and earlier; Microsoft Windows Server 2008 R2 and R2 SP1 and Windows 7 Gold and SP1; and possibly other operating systems, when running on an Intel processor, incorrectly uses the sysret path in cases where a certain address is not a c... • https://packetstorm.news/files/id/152001 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 1

20 Oct 2011 — Xen 4.1.1 and earlier allows local guest OS kernels with control of a PCI[E] device to cause a denial of service (CPU consumption and host hang) via many crafted DMA requests that are denied by the IOMMU, which triggers a livelock. Xen v4.1.1 y anteriores permite causar una denegación de servicio (consumo de CPU y bloqueo de Xen) a los kernels de sistemas operativos huesped que controlan dispositivos PCI[E] a través de muchas peticiones DMA modificadas que son denegadas por la IOMMU, lo que desencadena un b... • http://old-list-archives.xen.org/archives/html/xen-devel/2011-06/msg01106.html • CWE-399: Resource Management Errors •