CVSS: 4.9EPSS: 0%CPEs: 30EXPL: 0CVE-2015-4103
https://notcve.org/view.php?id=CVE-2015-4103
Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via vectors related to qemu and accessing spanning multiple fields. Xen 3.3.x hasta la versión 4.5.x no restringe correctamente el acceso a escritura al campo de datos del mensaje MSI del host, lo que permite a administradores invitados x86 HVM locales causar una denegación de servicio (confusión en el manejo de interrupción de host) a través de vectores relacionados con qemu y accediendo a múltiples campos de expansión. • http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160154.html http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160171.html http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160685.html http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00029.html http://lists.opensuse.org/opensuse-security-announce&#x • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 7.7EPSS: 0%CPEs: 10EXPL: 1CVE-2015-3456 – QEMU - Floppy Disk Controller (FDC) (PoC)
https://notcve.org/view.php?id=CVE-2015-3456
The Floppy Disk Controller (FDC) in QEMU, as used in Xen 4.5.x and earlier and KVM, allows local guest users to cause a denial of service (out-of-bounds write and guest crash) or possibly execute arbitrary code via the (1) FD_CMD_READ_ID, (2) FD_CMD_DRIVE_SPECIFICATION_COMMAND, or other unspecified commands, aka VENOM. Floppy Disk Controller (FDC) en QEMU, utilizado en Xen 4.5.x y anteriores y KVM, permite a usuarios locales invitados causar una denegación de servicio (escritura fuera de rango y caída del invitado) o posiblemente ejecutar código arbitrario a través de (1) FD_CMD_READ_ID, (2) FD_CMD_DRIVE_SPECIFICATION_COMMAND, u otros comandos sin especificar, también conocido como VENOM. An out-of-bounds memory access flaw was found in the way QEMU's virtual Floppy Disk Controller (FDC) handled FIFO buffer access while processing certain FDC commands. A privileged guest user could use this flaw to crash the guest or, potentially, execute arbitrary code on the host with the privileges of the host's QEMU process corresponding to the guest. • https://www.exploit-db.com/exploits/37053 http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=e907746266721f305d67bc0718795fedee2e824c http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10693 http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158072.html http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00013.html http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00014.html http:/&#x • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 2.9EPSS: 0%CPEs: 27EXPL: 0CVE-2015-3340
https://notcve.org/view.php?id=CVE-2015-3340
Xen 4.2.x through 4.5.x does not initialize certain fields, which allows certain remote service domains to obtain sensitive information from memory via a (1) XEN_DOMCTL_gettscinfo or (2) XEN_SYSCTL_getdomaininfolist request. Xen 4.2.x hasta 4.5.x no inicializa ciertos campos, lo que permite a ciertos dominios de servicio remotos obtener información sensible de la memoria a través de una solicitud (1) XEN_DOMCTL_gettscinfo o (2) XEN_SYSCTL_getdomaininfolist. • http://lists.fedoraproject.org/pipermail/package-announce/2015-April/156005.html http://lists.fedoraproject.org/pipermail/package-announce/2015-May/156979.html http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157006.html http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00019.html http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00001.html http://www.debian.org/security/2015/dsa-3414 h • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 4.9EPSS: 0%CPEs: 8EXPL: 0CVE-2015-2752
https://notcve.org/view.php?id=CVE-2015-2752
The XEN_DOMCTL_memory_mapping hypercall in Xen 3.2.x through 4.5.x, when using a PCI passthrough device, is not preemptible, which allows local x86 HVM domain users to cause a denial of service (host CPU consumption) via a crafted request to the device model (qemu-dm). La hiperllamada XEN_DOMCTL_memory_mapping en Xen 3.2.x hasta la versión 4.5.x, cuando utiliza un dispositivo de paso PCI, no es predecible, lo que podría permitir a usuarios locales del dominio HVM x86 provocar una denegación de servicio (consumo CPU del host) a través de una petición manipulada para el modelo del dispositivo (qemu-dm). • http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00018.html http://www.securityfocus.com/bid/73448 http://www.securitytracker.com/id/1031994 http://xenbits.xen.org/xsa/advisor • CWE-20: Improper Input Validation •
CVSS: 4.9EPSS: 0%CPEs: 14EXPL: 0CVE-2015-2756
https://notcve.org/view.php?id=CVE-2015-2756
QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest 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. QEMU, utilizado en Xen 3.3.x hasta 4.5.x, no restringe correctamente el acceso a los registros de comandos PCI, lo que podría permitir a usuarios locales invitados de HVM causar una denegación de servicio (non-maskable interrupt (NMI) y caída de anfitrión) mediante la deshabilitación de (1) la memoria o (2) la decodificación I/O para un dispositivo PCI Express y posteriormente accediendo al dispositivo, lo que provoca una respuesta Unsupported Request (UR). • http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154574.html http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154579.html http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155198.html http://lists.nongnu.org/archive/html/qemu-devel/2015-03/msg06179.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html http://support.citrix.com/article/CTX201145 http://www.debian.org/security/2015/dsa-3259 http://www.securityfocus.c • CWE-264: Permissions, Privileges, and Access Controls •