CVSS: 3.3EPSS: 0%CPEs: 45EXPL: 0CVE-2016-9932
https://notcve.org/view.php?id=CVE-2016-9932
CMPXCHG8B emulation in Xen 3.3.x through 4.7.x on x86 systems allows local HVM guest OS users to obtain sensitive information from host stack memory via a "supposedly-ignored" operand size prefix. Emulación CMPXCHG8B en Xen 3.3.x hasta la versión 4.7.x en sistemas x86 permite a usuarios locales HVM invitados del SO obtener información sensible de la memoria basada en pila del anfitrión a través de un prefijo de tamaño de operando "supuestamente ignorado". • http://www.debian.org/security/2017/dsa-3847 http://www.securityfocus.com/bid/94863 http://www.securitytracker.com/id/1037468 http://xenbits.xen.org/xsa/advisory-200.html https://security.gentoo.org/glsa/201612-56 https://support.citrix.com/article/CTX219378 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 6.3EPSS: 0%CPEs: 1EXPL: 0CVE-2016-7777
https://notcve.org/view.php?id=CVE-2016-7777
Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by modifying an instruction while the hypervisor is preparing to emulate it. Xen 4.7.x y versiones anteriores no respeta adecuadamente CR0.TS y CR0.EM, lo que permite a usuarios locales x86 HVM del SO invitado leer o modificar información del estado de registro FPU, MMX o XMM que pertenece a tareas arbitrarias en el invitado modificando una instrucción mientras que el hipervisor se prepara para emularlo. • http://www.securityfocus.com/bid/93344 http://www.securitytracker.com/id/1036942 http://xenbits.xen.org/xsa/advisory-190.html https://security.gentoo.org/glsa/201611-09 https://support.citrix.com/article/CTX217363 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 4.1EPSS: 0%CPEs: 1EXPL: 0CVE-2016-7094
https://notcve.org/view.php?id=CVE-2016-7094
Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update. Desbordamiento de búfer en Xen 4.7.x y versiones anteriores permite a administradores locales del SO invitado x86 HVM ejecutado con paginación sombra provocar una denegación de servicio a través de una actualización de tabla de página. • http://support.citrix.com/article/CTX216071 http://www.debian.org/security/2016/dsa-3663 http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html http://www.securityfocus.com/bid/92864 http://www.securitytracker.com/id/1036753 http://xenbits.xen.org/xsa/advisory-187.html http://xenbits.xen.org/xsa/xsa187-0001-x86-shadow-Avoid-overflowing-sh_ctxt-seg_reg.patch https://security.gentoo.org/glsa/201611-09 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 8.4EPSS: 0%CPEs: 4EXPL: 0CVE-2016-4480
https://notcve.org/view.php?id=CVE-2016-4480
The guest_walk_tables function in arch/x86/mm/guest_walk.c in Xen 4.6.x and earlier does not properly handle the Page Size (PS) page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory. La función guest_walk_tables en arch/x86/mm/guest_walk en Xen 4.6.x y versiones anteriores no maneja adecuadamente el bit de entrada a la tabla de página Page Size (PS) en los niveles de tabla de página L4 y L3, lo que podría permitir a usuarios locales huéspedes del sistema operativo obtener privilegios a través de un mapa de memoria manipulado. • http://www.debian.org/security/2016/dsa-3633 http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html http://www.securityfocus.com/bid/90710 http://www.securitytracker.com/id/1035901 http://xenbits.xen.org/xsa/advisory-176.html • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2016-3961
https://notcve.org/view.php?id=CVE-2016-3961
Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area. Xen y el kernel de Linux hasta la versión 4.5.x no suprime adecuadamente el apoyo hugetlbfs en invitados x86 PV, lo que permite a usuarios PV locales invitados del SO provocar una denegación de servicio (caida de SO invitado) al intentar acceder a un área mapeada hugetlbfs. • http://www.debian.org/security/2016/dsa-3607 http://www.securityfocus.com/bid/86068 http://www.securitytracker.com/id/1035569 http://www.ubuntu.com/usn/USN-3001-1 http://www.ubuntu.com/usn/USN-3002-1 http://www.ubuntu.com/usn/USN-3003-1 http://www.ubuntu.com/usn/USN-3004-1 http://www.ubuntu.com/usn/USN-3005-1 http://www.ubuntu.com/usn/USN-3006-1 http://www.ubuntu.com/usn/USN-3007-1 http://www.ubuntu.com/usn/USN-3049-1 http: • CWE-20: Improper Input Validation •