CVSS: 6.1EPSS: 0%CPEs: 11EXPL: 0CVE-2012-3495
https://notcve.org/view.php?id=CVE-2012-3495
The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors. La hypercall physdev_get_free_pirq en arch/x86/physdev.c en Xen v4.1.x y Citrix XenServer v6.0.2 y anteriores utiliza el valor devuelto por la función get_free_pirq como un índice de la matriz sin comprobar que el valor de retorno indica un error, permitiendo a los huéspedes del OS invitado causar una denegación de servicio (escritura de memoria no válidas y caída del host) y, posiblemente, obtener privilegios a través de vectores no especificados. • http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html http://lists.xen.org/archives/html/xen-announce/2012-09/msg00001.html http://secunia.com/advisories/51413 http://secunia.com&#x • CWE-20: Improper Input Validation •
CVSS: 4.9EPSS: 0%CPEs: 3EXPL: 0CVE-2012-6032
https://notcve.org/view.php?id=CVE-2012-6032
Multiple integer overflows in the (1) tmh_copy_from_client and (2) tmh_copy_to_client functions in the Transcendent Memory (TMEM) in Xen 4.0, 4.1, and 4.2 allow local guest OS users to cause a denial of service (memory corruption and host crash) via unspecified vectors. NOTE: this issue was originally published as part of CVE-2012-3497, which was too general; CVE-2012-3497 has been SPLIT into this ID and others. Múltiples desbordamientos de enteros en las funciones (1) tmh_copy_from_client y (2) tmh_copy_to_client en Transcendent Memory (TMEM) en Xen v4.0, v4.1, y v4.2 permiten a los usuarios del SO invitado provocar una denegación de servicio (corrupción de memoria y caída del host) a través de vectores no especificados. NOTA: este problema se publicó originalmente como parte del CVE-2012-3497, que era demasiado general; CVE-2012-3497 se ha dividido en este ID y otros. • http://lists.xen.org/archives/html/xen-announce/2012-09/msg00006.html http://osvdb.org/85199 http://secunia.com/advisories/50472 http://secunia.com/advisories/55082 http://security.gentoo.org/glsa/glsa-201309-24.xml http://wiki.xen.org/wiki/Security_Announcements#XSA-15_multiple_TMEM_hypercall_vulnerabilities http://www.openwall.com/lists/oss-security/2012/09/05/8 http://www.securityfocus.com/bid/55410 http://www.securitytracker.com/id?1027482 https://exchange.xforce.ibmcloud& • CWE-189: Numeric Errors •
CVSS: 5.5EPSS: 0%CPEs: 15EXPL: 0CVE-2012-4535 – kernel: xen: VCPU timer overflow leads to PCPU deadlock and host death-by-watchdog
https://notcve.org/view.php?id=CVE-2012-4535
Xen 3.4 through 4.2, and possibly earlier versions, allows local guest OS administrators to cause a denial of service (Xen infinite loop and physical CPU consumption) by setting a VCPU with an "inappropriate deadline." Xen 3.4 hasta 4.2 y posiblemente versiones anteriores permite a los administradores de sistemas operativos clientes locales causar una denegación de servicio (bucle infinito en Xen y consumo de CPU física), configurando un VCPU con una "fecha límite inapropiada". • http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2014-04 • CWE-399: Resource Management Errors •
CVSS: 5.5EPSS: 0%CPEs: 15EXPL: 0CVE-2012-4537 – kernel: xen: Memory mapping failure can crash Xen
https://notcve.org/view.php?id=CVE-2012-4537
Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability." Xen v3.4 hasta v4.2 y posiblemente versiones anteriores, no sincroniza correctamente las tablas p2m y m2p cuando la función set_p2m_entry falla, lo que permite a los administradores de sistemas operativos clientes en HVM locales, causar una denegación de servicio (consumo de memoria y error de aserción), también conocido como "vulnerabilidad de denegación de servicio por fallo en mapeo de memoria. • http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2014-04 • CWE-16: Configuration •
CVSS: 2.7EPSS: 0%CPEs: 5EXPL: 0CVE-2012-4544 – xen: Xen domain builder Out-of-memory due to malicious kernel/ramdisk
https://notcve.org/view.php?id=CVE-2012-4544
The PV domain builder in Xen 4.2 and earlier does not validate the size of the kernel or ramdisk (1) before or (2) after decompression, which allows local guest administrators to cause a denial of service (domain 0 memory consumption) via a crafted (a) kernel or (b) ramdisk. El PV domain builder en Xen 4.2 y anteriores, no valida el tamaño del kernel o del ramdisk(1) antes o (2) después de la descompresión, lo que permite a administradores locales de los sistemas huésped provocar una denegación de servicio (consumo de memoria) a través de un (1)kernel o (2)ramdisk manipulado. • http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091832.html http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091844.html http://lists.fedoraproject.org/pipermail/package-announce/2012-November/092050.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00009.html http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html http://lists.opensuse.org/opensuse-security- • CWE-20: Improper Input Validation •