CVSS: 7.8EPSS: 0%CPEs: 27EXPL: 0CVE-2015-8341
https://notcve.org/view.php?id=CVE-2015-8341
The libxl toolstack library in Xen 4.1.x through 4.6.x does not properly release mappings of files used as kernels and initial ramdisks when managing multiple domains in the same process, which allows attackers to cause a denial of service (memory and disk consumption) by starting domains. La librería libxl toolstack en Xen 4.1.x hasta la versión 4.6.x no libera adecuadamente el mapeo de archivos utilizados como kernels y ramdisks iniciales cuando manejan múltiples dominios en el mismo proceso, lo que permite a atacantes causar una denegación de servicio (consumo de memoria y disco) mediante dominios de arranque. • http://www.debian.org/security/2016/dsa-3519 http://www.securitytracker.com/id/1034389 http://xenbits.xen.org/xsa/advisory-160.html https://security.gentoo.org/glsa/201604-03 • CWE-399: Resource Management Errors •
CVSS: 4.7EPSS: 0%CPEs: 44EXPL: 0CVE-2015-8340
https://notcve.org/view.php?id=CVE-2015-8340
The memory_exchange function in common/memory.c in Xen 3.2.x through 4.6.x does not properly release locks, which might allow guest OS administrators to cause a denial of service (deadlock or host crash) via unspecified vectors, related to XENMEM_exchange error handling. La función memory_exchange en common/memory.c en Xen 3.2.x hasta la versión 4.6.x no devuelve adecuadamente páginas a un dominio, lo que podría permitir a administradores invitados del SO causar una denegación de servicio (interbloqueo o caída del host) a través de vectores no especificados, relacionados con un error de manejo XENMEM_exchange. • http://support.citrix.com/article/CTX203451 http://www.debian.org/security/2016/dsa-3519 http://www.securityfocus.com/bid/79038 http://www.securitytracker.com/id/1034391 http://xenbits.xen.org/xsa/advisory-159.html https://security.gentoo.org/glsa/201604-03 • CWE-17: DEPRECATED: Code •
CVSS: 7.2EPSS: 0%CPEs: 1EXPL: 0CVE-2015-8338
https://notcve.org/view.php?id=CVE-2015-8338
Xen 4.6.x and earlier does not properly enforce limits on page order inputs for the (1) XENMEM_increase_reservation, (2) XENMEM_populate_physmap, (3) XENMEM_exchange, and possibly other HYPERVISOR_memory_op suboperations, which allows ARM guest OS administrators to cause a denial of service (CPU consumption, guest reboot, or watchdog timeout and host reboot) and possibly have unspecified other impact via unknown vectors. Xen 4.6.x y versiones anteriores no impone adecuadamente límites en órdenes de entrada de página para las suboperaciones (1) XENMEM_increase_reservation, (2) XENMEM_populate_physmap, (3) XENMEM_exchange y posiblemente otra HYPERVISOR_memory_op, lo que permite a administradores ARM invitados del SO causar una denegación de servicio (consumo de CPU, reinicio de invitado o tiempo de watchdog excedido o reinicio host) y posiblemente tener otro impacto no especificado a través de vectores desconocidos. • http://www.debian.org/security/2016/dsa-3633 http://www.securityfocus.com/bid/78920 http://www.securitytracker.com/id/1034390 http://xenbits.xen.org/xsa/advisory-158.html • CWE-254: 7PK - Security Features •
CVSS: 8.8EPSS: 0%CPEs: 7EXPL: 0CVE-2015-7504 – Qemu: net: pcnet: heap overflow vulnerability in pcnet_receive
https://notcve.org/view.php?id=CVE-2015-7504
Heap-based buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service (instance crash) or possibly execute arbitrary code via a series of packets in loopback mode. Desbordamiento de búfer basado en memoria dinámica (heap) en la función pcnet_receive en hw/net/pcnet.c en QEMU permite que administradores del sistema operativo invitados provoquen una denegación de servicio (cierre inesperado de la instancia) o que puedan ejecutar código arbitrario mediante una serie de paquetes en modo de bucle invertido. A heap-based buffer overflow flaw was discovered in the way QEMU's AMD PC-Net II Ethernet Controller emulation received certain packets in loopback mode. A privileged user (with the CAP_SYS_RAWIO capability) inside a guest could use this flaw to crash the host QEMU process (resulting in denial of service) or, potentially, execute arbitrary code with privileges of the host QEMU process. • http://rhn.redhat.com/errata/RHSA-2015-2694.html http://rhn.redhat.com/errata/RHSA-2015-2695.html http://rhn.redhat.com/errata/RHSA-2015-2696.html http://www.debian.org/security/2016/dsa-3469 http://www.debian.org/security/2016/dsa-3470 http://www.debian.org/security/2016/dsa-3471 http://www.openwall.com/lists/oss-security/2015/11/30/2 http://www.securityfocus.com/bid/78227 http://www.securitytracker.com/id/1034268 http://xenbits.xen.org/xsa/advisory • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 4.9EPSS: 0%CPEs: 8EXPL: 0CVE-2015-7812
https://notcve.org/view.php?id=CVE-2015-7812
The hypercall_create_continuation function in arch/arm/domain.c in Xen 4.4.x through 4.6.x allows local guest users to cause a denial of service (host crash) via a preemptible hypercall to the multicall interface. La función hypercall_create_continuation en arch/arm/domain.c en Xen 4.4.x hasta la versión 4.6.x permite a usuarios locales invitados provocar una denegación de servicio (caída de host) a través de una hypercall a la interfaz multi llamada. • http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html http://www.debian.org/security/2015/dsa-3414 http://www.securitytracker.com/id/1034031 http://xenbits.xen.org/xsa/advisory-145.html https://security.gentoo.org/glsa/201604-03 • CWE-254: 7PK - Security Features •