CVSS: 7.2EPSS: 0%CPEs: 38EXPL: 0CVE-2015-2151 – xen: hypervisor memory corruption due to x86 emulator flaw (xsa123)
https://notcve.org/view.php?id=CVE-2015-2151
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, causar una denegación de servicio (corrupción de memoria), o posiblemente ejecutar código arbitrario a través de vectores no especificados. It was found that the Xen hypervisor x86 CPU emulator implementation did not correctly handle certain instructions with segment overrides, potentially resulting in a memory corruption. A malicious guest user could use this flaw to read arbitrary data relating to other guests, cause a denial of service on the host, or potentially escalate their privileges on the host. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html http://support.citrix.com/article/CTX200484 http://www.debian.org/security/2015/dsa-3181 http://www.oracle.com/technetwork/ • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 4.9EPSS: 0%CPEs: 1EXPL: 0CVE-2015-0268
https://notcve.org/view.php?id=CVE-2015-0268
The vgic_v2_to_sgi function in arch/arm/vgic-v2.c in Xen 4.5.x, when running on ARM hardware with general interrupt controller (GIC) version 2, allows local guest users to cause a denial of service (host crash) by writing an invalid value to the GICD.SGIR register. La función vgic_v2_to_sgi en arch/arm/vgic-v2.c en Xen 4.5.x, cuando funciona en el hardware ARM con General Interrupt Controller (GIC) version 2, permite a usuarios locales invitados causar una denegación de servicio (caída del anfitrión) mediante la escritura de un valor inválido en el registro GICD.SGIR. • http://www.securityfocus.com/bid/72591 http://www.securitytracker.com/id/1031746 http://xenbits.xen.org/xsa/advisory-117.html https://exchange.xforce.ibmcloud.com/vulnerabilities/100868 • CWE-20: Improper Input Validation •
CVSS: 2.1EPSS: 0%CPEs: 23EXPL: 0CVE-2015-1563
https://notcve.org/view.php?id=CVE-2015-1563
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 http://www.openwall.com/lists/oss-security/2015/01/29/9 http://www.securityfocus.com/bid/72766 http://www.securitytracker.com/id/1031663 http://xenbits.xen.org/xsa/advisory-118.html • CWE-399: Resource Management Errors •
CVSS: 4.9EPSS: 0%CPEs: 3EXPL: 0CVE-2014-6268
https://notcve.org/view.php?id=CVE-2014-6268
The evtchn_fifo_set_pending function in Xen 4.4.x allows local guest users to cause a denial of service (host crash) via vectors involving an uninitialized FIFO-based event channel control block when (1) binding or (2) moving an event to a different VCPU. La función evtchn_fifo_set_pending en Xen 4.4.x permite a usuarios locales causar una denegación de servicio (caída del anfitrión) a través vectores que involucran un bloque de control de eventos basado en FIFO no inicializado cuando (1) formando bloques o (2) trasladando un evento a un VCPU diferente. • http://www.securityfocus.com/bid/69753 http://www.securitytracker.com/id/1030829 http://xenbits.xen.org/xsa/advisory-107.html https://exchange.xforce.ibmcloud.com/vulnerabilities/95837 • CWE-399: Resource Management Errors •
CVSS: 7.8EPSS: 0%CPEs: 14EXPL: 0CVE-2015-0361
https://notcve.org/view.php?id=CVE-2015-0361
Use-after-free vulnerability in Xen 4.2.x, 4.3.x, and 4.4.x allows remote domains to cause a denial of service (system crash) via a crafted hypercall during HVM guest teardown. Vulnerabilidad de uso después de liberación en Xen 4.2.x, 4.3.x, y 4.4.x permite a dominios remotos causar una denegación de servicio (caída del sistema) a través de una hiperllamada manipulada durante el apagado del modulo HVM de la maquina virtual. • http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148103.html http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148241.html http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html http://www.securityfocus.com/bid/71882 http://www.securitytracker.com/id/1031498 http://xenbits.xen.org/xsa/advisory-116.html https://security.gentoo.org/glsa/201504-04 •