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: 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: 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 •
CVSS: 4.4EPSS: 0%CPEs: 3EXPL: 0CVE-2014-9065
https://notcve.org/view.php?id=CVE-2014-9065
common/spinlock.c in Xen 4.4.x and earlier does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability to CVE-2014-9066. common/spinlock.c en Xen 4.4.x y anteriores no maneja correctamente los bloqueos de lectura y escritura, lo que permite a usuarios locales invitados de x86 causar una denegación de servicio (denegación de escritura o fin de sesión de la vigilancia NMI y caída del anfitrión) a través de un número grande de solicitudes de lectura, una vulnerabilidad diferente a CVE-2014-9066. • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html http://www.openwall.com/lists/oss-security/2014/12/08/4 http://www.securityfocus.com/bid/71544 http://xenbits.xen.org/xsa/advisory-114.html https://security.gentoo.org/glsa/201504-04 • CWE-17: DEPRECATED: Code •
CVSS: 4.7EPSS: 0%CPEs: 3EXPL: 0CVE-2014-9066
https://notcve.org/view.php?id=CVE-2014-9066
Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065. Xen 4.4.x y versiones anteriores, cuando utiliza un gran número de VCPUs, no maneja adecuadamente los bloqueos de lectura y escritura, lo que permite a usuarios invitados x86 locales causar una denegación de servicio (denegación de escritura o tiempo de espera agotado del watchdog NMI y caida de host) a través de un gran número de peticiones de lectura, una vulnerabilidad diferente a CVE-2014-9065. • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html http://www.openwall.com/lists/oss-security/2014/12/08/4 http://www.securityfocus.com/bid/71546 http://xenbits.xen.org/xsa/advisory-114.html https://security.gentoo.org/glsa/201504-04 • CWE-17: DEPRECATED: Code •