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: 4.7EPSS: 0%CPEs: 1EXPL: 0CVE-2015-7814
https://notcve.org/view.php?id=CVE-2015-7814
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 servicio (caída del host) a través de vectores relacionados con la destrucción de un dominio y utilizando XENMEM_decrease_reservation para reducir la memoria del dominio. • 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/1034030 http://xenbits.xen.org/xsa/advisory-147.html https://security.gentoo.org/glsa/201604-03 • 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: 2.1EPSS: 0%CPEs: 37EXPL: 0CVE-2015-7971
https://notcve.org/view.php?id=CVE-2015-7971
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 mensajes de la consola printk cuando incia sesión cierto pmu y hypercalls de perfilado, lo que permite a invitados locales provocar una denegación de servicio a través de una secuencia de hypercalls manipuladas (1) HYPERCALL_xenoprof_op, que no son manejadas adecuadamente en la función do_xenoprof_op en common/xenoprof.c o (2) HYPERVISOR_xenpmu_op, que no son manejadas adecuadamente en la función do_xenpmu_op en arch/x86/cpu/vpmu.c. • 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://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html http://support.citrix.com/article/CTX202404 http://www.debian.org/security/2015/dsa-3414 http://www.securityfocus.com/bid/77363 http://www.securitytracker.com/id/1034035 http://xenbits. • CWE-19: Data Processing Errors •
CVSS: 7.2EPSS: 0%CPEs: 4EXPL: 0CVE-2015-5166
https://notcve.org/view.php?id=CVE-2015-5166
Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice. Vulnerabilidad de uso después de liberación en la memoria en QEMU en Xen 4.5.x y versiones anteriores, no desconecta completamente los dispositivos de bloque emulados, lo que permite a usuarios invitados HVM locales obtener privilegios desconectando un dispositivo de bloque dos veces. • http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.html http://www.securityfocus.com/bid/76152 http://www.securitytracker.com/id/1033175 http://xenbits.xen.org/xsa/advisory-139.html • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 9.3EPSS: 0%CPEs: 65EXPL: 0CVE-2015-5165 – Qemu: rtl8139 uninitialized heap memory information leakage to guest (XSA-140)
https://notcve.org/view.php?id=CVE-2015-5165
The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used in Xen 4.5.x and earlier, allows remote attackers to read process heap memory via unspecified vectors. Vulnerabilidad en la emulación de modo offload C+ en el modelo de tarjeta de red del dispositivo RTL8139 en QEMU, tal y como se utiliza en Xen 4.5.x y versiones anteriores, permite a atacantes remotos leer la memoria dinámica del proceso a través de vectores no especificados. An information leak flaw was found in the way QEMU's RTL8139 emulation implementation processed network packets under RTL8139 controller's C+ mode of operation. An unprivileged guest user could use this flaw to read up to 65 KB of uninitialized QEMU heap memory. • http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.html http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00027.html http://rhn.redhat.com/errata/RHSA-2015-1674.html http://rhn.redhat.com/errata/RHSA-2015-1683.html http: • CWE-456: Missing Initialization of a Variable CWE-908: Use of Uninitialized Resource •