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CVSS: 5.5EPSS: 0%CPEs: 32EXPL: 0

12 Mar 2015 — 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... • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=af6fc858a35b90e89ea7a7ee58e66628c55c776b • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 7.5EPSS: 0%CPEs: 38EXPL: 0

11 Mar 2015 — The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors. El emulador x86 en Xen 3.2.x hasta 4.5.x no ignora correctamente las anulaciones de segmentos para instrucciones con operandos del registro, lo que permite a usuarios locales invitados obtener información sensible... • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 • CWE-264: Permissions, Privileges, and Access Controls •

CVSS: 5.5EPSS: 0%CPEs: 34EXPL: 0

11 Mar 2015 — The emulation routines for unspecified X86 devices in Xen 3.2.x through 4.5.x does not properly initialize data, which allow local HVM guest users to obtain sensitive information via vectors involving an unsupported access size. Las rutinas de emulación para dispositivos X86 no especificados en Xen 3.2.x hasta 4.5.x no inicializa correctamente los datos, lo que permite a usuarios locales invitados HVM obtener información sensible a través de vectores que involucran un tamaño de acceso no soportado. Multiple... • http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 5.5EPSS: 0%CPEs: 38EXPL: 0

11 Mar 2015 — The HYPERVISOR_xen_version hypercall in Xen 3.2.x through 4.5.x does not properly initialize data structures, which allows local guest users to obtain sensitive information via unspecified vectors. La hiperllamada HYPERVISOR_xen_version en Xen 3.2.x hasta 4.5.x ni inicializa correctamente las estructuras de datos, lo que permite a usuarios locales invitados obtener información sensible a través de vectores no especificados. Multiple vulnerabilities have been found in Xen, the worst of which can allow remote... • http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 5.5EPSS: 0%CPEs: 23EXPL: 0

09 Feb 2015 — The ARM GIC distributor virtualization in Xen 4.4.x and 4.5.x allows local guests to cause a denial of service by causing a large number messages to be logged. La virtualización del distribuidor ARM GIC en Xen 4.4.x y 4.5.x permite a invitados locales causar una denegación de servicio mediante la provocación del registro un número grande de mensajes. • http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html • CWE-399: Resource Management Errors •

CVSS: 9.8EPSS: 0%CPEs: 3EXPL: 0

09 Dec 2014 — common/spinlock.c in Xen 4.4.x and earlier does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability to CVE-2014-9066. common/spinlock.c en Xen 4.4.x y anteriores no maneja correctamente los bloqueos de lectura y escritura, lo que permite a usuarios locales invitados de x86 causar una denegación de servicio (denegación de escritura o fin de... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-17: DEPRECATED: Code •

CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0

09 Dec 2014 — Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065. Xen 4.4.x y versiones anteriores, cuando utiliza un gran número de VCPUs, no maneja adecuadamente los bloqueos de lectura y escritura, lo que permite a usuarios invitados x86 locales causar una denegación ... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-17: DEPRECATED: Code •

CVSS: 10.0EPSS: 0%CPEs: 11EXPL: 0

01 Dec 2014 — The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors. El soporte de aceleración para la instrucción 'REP MOVS' en Xen 4.4.x, 3.2.x, y anteriores falla en la comprobación correcta de los límites para entrada/salida del mapeado de memoria (memory mapped I/O, MMIO) emulado en el hipervisor, lo ... • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 • CWE-17: DEPRECATED: Code •

CVSS: 5.5EPSS: 0%CPEs: 31EXPL: 0

01 Dec 2014 — The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode. La traducción del argumento de hiperllamadas del modo de compatibilidad en Xen 3.3.x hasta 4.4.x, cuando funciona en un hipervisor de 64 bits, permite a invitados locales de HVM de 32 bits causar una denegación de servicio (caída del anfi... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-17: DEPRECATED: Code •

CVSS: 7.5EPSS: 2%CPEs: 35EXPL: 0

24 Nov 2014 — The do_mmu_update function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMU_MACHPHYS_UPDATE. La función do_mmu_update en arch/x86/mm.c en Xen 3.2.x hasta 4.4.x no maneja debidamente las referencias de páginas, lo que permite a dominios remotos causar una denegación de servicio mediante el aprovechamiento del control sobre un invitado HVM y un MMU_MACHPHYS_UP... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-20: Improper Input Validation •