CVSS: 4.4EPSS: 0%CPEs: 29EXPL: 0CVE-2013-1920
https://notcve.org/view.php?id=CVE-2013-1920
Xen 4.2.x, 4.1.x, and earlier, when the hypervisor is running "under memory pressure" and the Xen Security Module (XSM) is enabled, uses the wrong ordering of operations when extending the per-domain event channel tracking table, which causes a use-after-free and allows local guest kernels to inject arbitrary events and gain privileges via unspecified vectors. Xen v4.2.x, v4.1.x, y anteriores, cuando el hypervisor se está ejecutando "bajo presión de memoria" y el Módulo de Seguridad Xen (XSM) está activado, usa un orden de operaciones incorrecto cuando se extiende la tabla de seguimiento del canal de eventos por dominio, lo que ocasiona una vulnerabilidad de uso después de liberación y permite inyectar eventos de su elección a los núcleos locales de clientes y obtener privilegios a través de vectores no especificados. • http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html http://lists.opensuse.org/opensuse-updates/2013-06/msg00049.html http://lists.xen.org/archives/html/xen-announce/2013-04/msg00000.html http://osvdb.org/92050 http://secunia.com/advisories/52857 http://secunia.com/advisories/55082 http://security.gentoo.org/glsa/gls • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 5.2EPSS: 0%CPEs: 11EXPL: 0CVE-2013-0231 – kernel: xen: pciback DoS via not rate limited log messages
https://notcve.org/view.php?id=CVE-2013-0231
The pciback_enable_msi function in the PCI backend driver (drivers/xen/pciback/conf_space_capability_msi.c) in Xen for the Linux kernel 2.6.18 and 3.8 allows guest OS users with PCI device access to cause a denial of service via a large number of kernel log messages. NOTE: some of these details are obtained from third party information. La función pciback_enable_msi en el controlador PCI backend (drivers/xen/pciback/conf_space_capability_msi.c) en Xen para Linux kernel v2.6.18 y v3.8, permite que los usuarios de los sistemas operativos huésped (guest) puedan provocar una denegación de servicio a través de un número elevado de mensajes de log del kernel. NOTA: algunos de estos detalles han sido obtenidos a partir de información de terceros. • http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html http://osvdb.org/89903 http://secunia.com/advisories/52059 http://www.debian.org/security/2013/dsa-2632 http://www.openwall.com/lists/oss-security/2013/02/05/9 http://www.securityfocus.com/bid/57740 https://exchange.xforce.ibmcloud.com/vulnerabilities/81923 https& • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 4.7EPSS: 0%CPEs: 27EXPL: 0CVE-2012-5514
https://notcve.org/view.php?id=CVE-2012-5514
The guest_physmap_mark_populate_on_demand function in Xen 4.2 and earlier does not properly unlock the subject GFNs when checking if they are in use, which allows local guest HVM administrators to cause a denial of service (hang) via unspecified vectors. La función guest_physmap_mark_populate_on_demand en Xen v4.2 y anteriores no desbloquea correctamente los GFNs al comprobar si están en uso, lo que permite causar una denegación de servicio (caída del HVM)a los administradores de HVM invitados locales a través de vectores no especificados. • http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00019.html http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://lists.opensuse.org/opensuse-updates/2013-04/msg00051.html http://lists.opensuse.org/opensuse-updates/2013-04/msg00052.html http •
CVSS: 5.5EPSS: 0%CPEs: 27EXPL: 0CVE-2012-5515 – kernel: xen: Several memory hypercall operations allow invalid extent order values
https://notcve.org/view.php?id=CVE-2012-5515
The (1) XENMEM_decrease_reservation, (2) XENMEM_populate_physmap, and (3) XENMEM_exchange hypercalls in Xen 4.2 and earlier allow local guest administrators to cause a denial of service (long loop and hang) via a crafted extent_order value. Las hiperllamadas (1) XENMEM_decrease_reservation, (2) XENMEM_populate_physmap, y (3) XENMEM_exchange en Xen v4.2 y anteriores permiten a los administradores invitados locales causar una denegación de servicio (bucle largo y cuelgue) a través de un valor modificado de "extent_order". • http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00019.html http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2014-04 •
CVSS: 7.4EPSS: 0%CPEs: 27EXPL: 0CVE-2012-5513 – kernel: xen: XENMEM_exchange may overwrite hypervisor memory
https://notcve.org/view.php?id=CVE-2012-5513
The XENMEM_exchange handler in Xen 4.2 and earlier does not properly check the memory address, which allows local PV guest OS administrators to cause a denial of service (crash) or possibly gain privileges via unspecified vectors that overwrite memory in the hypervisor reserved range. El manejador XENMEM_exchange en Xen v4.2 y anteriores no comprueba correctamente la dirección de memoria, lo que permite causar una denegación de servicio (caída del S.O.) a administrador de sistemas operativos invitados PV o posiblemente obtener privilegios a través de vectores no especificados que sobrescriben memoria en rangos del hipervisor reservados. • http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00019.html http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2014-04 • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •