CVSS: 6.0EPSS: 0%CPEs: 34EXPL: 0CVE-2013-4554 – kernel: xen: hypercalls exposed to privilege rings 1 and 2 of HVM guests
https://notcve.org/view.php?id=CVE-2013-4554
Xen 3.0.3 through 4.1.x (possibly 4.1.6.1), 4.2.x (possibly 4.2.3), and 4.3.x (possibly 4.3.1) does not properly prevent access to hypercalls, which allows local guest users to gain privileges via a crafted application running in ring 1 or 2. Xen 3.0.3 a 4.1.x (posiblemente 4.1.6.1), 4.2.x (posiblemente 4.2.3), y 4.3.x (posiblemente 4.3.1) no previene correctamente acceso a hypercalls, lo cual permite a usuarios invitados locales obtener privilegios a través de la ejecución de una aplicación manipulada en el anillo 1 o el anillo 2. • http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html 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/2013-12/msg00059.html http://rhn.redhat.com/errata/RHSA-2014-0285.html http://security.gentoo.org/glsa/glsa-201407-03.xml http://www.openwall.com/lists&# • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 2.3EPSS: 0%CPEs: 34EXPL: 0CVE-2013-4368 – xen: information leak through outs instruction emulation (XSA-67)
https://notcve.org/view.php?id=CVE-2013-4368
The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register. La instrucción de emulación outs en Xen 3.1.x, 4.2.x, 4.3.x, y anteriores versiones, cuando se usa la anulación del segmento FS: o GS:, utiliza una variable sin inicializar como segmento base, lo que permite a usuarios locales de 64-bit PV obtener información sensible (contenido de la pila de hipervisor) a través de vectores relacionados de datos obsoletos en un registro del segmento. • 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/2013-11/msg00009.html http://rhn.redhat.com/errata/RHSA-2013-1449.html http://security.gentoo.org/glsa/glsa-201407-03.xml http://www.debian.org/security/2014/dsa-3006 http://www.openwall.com/lists/oss-security/2013/10 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 2.1EPSS: 0%CPEs: 23EXPL: 0CVE-2013-4361
https://notcve.org/view.php?id=CVE-2013-4361
The fbld instruction emulation in Xen 3.3.x through 4.3.x does not use the correct variable for the source effective address, which allows local HVM guests to obtain hypervisor stack information by reading the values used by the instruction. La emulación de la instrucción fbld en Xen 3.3.x a 4.3.x no usa la variable correcta para la dirección de origen efectiva, lo cual permite a invitados HVM locales obtener información de la pila del hypervisor mediante la lectura de valores usados por la instrucción. • http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://lists.opensuse.org/opensuse-updates/2013-11/msg00009.html http://security.gentoo.org/glsa/glsa-201407-03.xml http://www.debian.org/security/2014/dsa-3006 http://www.openwall.com/lists/oss-security/2013/09/30/3 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 2.3EPSS: 0%CPEs: 33EXPL: 0CVE-2013-4355 – Kernel: Xen: Xsa-63: information leak via I/O instruction emulation
https://notcve.org/view.php?id=CVE-2013-4355
Xen 4.3.x and earlier does not properly handle certain errors, which allows local HVM guests to obtain hypervisor stack memory via a (1) port or (2) memory mapped I/O write or (3) other unspecified operations related to addresses without associated memory. Xen v4.3.x y anterior no maneja correctamente ciertos errores, lo que permite a invitados locales HVM conseguir la memoria de la pila del hypervisor a través de un puerto o escritura de memoria mapeada de I/O u otra operación no especificada relacionada con direcciones sin memoria asociada. • 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/2013-11/msg00009.html http://rhn.redhat.com/errata/RHSA-2013-1790.html http://security.gentoo.org/glsa/glsa-201407-03.xml http://www.debian.org/security/2014/dsa-3006 http://www.openwall.com/lists/oss-security/2013/09 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.7EPSS: 0%CPEs: 23EXPL: 0CVE-2013-2212
https://notcve.org/view.php?id=CVE-2013-2212
The vmx_set_uc_mode function in Xen 3.3 through 4.3, when disabling caches, allows local HVM guests with access to memory mapped I/O regions to cause a denial of service (CPU consumption and possibly hypervisor or guest kernel panic) via a crafted GFN range. La función vmx_set_uc_mode en Xen 3.3 hasta la versión 4.3, al deshabilitar cachés, permite a invitados HVM locales con a las regiones I/O asignadas a la memoria provocar una denegación de servicio (consumo de CPU y posiblemente pánico de hypervisor o de kérnel invitado) a través de un rango GFN manipulado. • http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://www.openwall.com/lists/oss-security/2013/07/24/6 https://security.gentoo.org/glsa/201504-04 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •