CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2016-3961
https://notcve.org/view.php?id=CVE-2016-3961
Xen and the Linux kernel through 4.5.x do not properly suppress hugetlbfs support in x86 PV guests, which allows local PV guest OS users to cause a denial of service (guest OS crash) by attempting to access a hugetlbfs mapped area. Xen y el kernel de Linux hasta la versión 4.5.x no suprime adecuadamente el apoyo hugetlbfs en invitados x86 PV, lo que permite a usuarios PV locales invitados del SO provocar una denegación de servicio (caida de SO invitado) al intentar acceder a un área mapeada hugetlbfs. • http://www.debian.org/security/2016/dsa-3607 http://www.securityfocus.com/bid/86068 http://www.securitytracker.com/id/1035569 http://www.ubuntu.com/usn/USN-3001-1 http://www.ubuntu.com/usn/USN-3002-1 http://www.ubuntu.com/usn/USN-3003-1 http://www.ubuntu.com/usn/USN-3004-1 http://www.ubuntu.com/usn/USN-3005-1 http://www.ubuntu.com/usn/USN-3006-1 http://www.ubuntu.com/usn/USN-3007-1 http://www.ubuntu.com/usn/USN-3049-1 http: • CWE-20: Improper Input Validation •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2015-8554
https://notcve.org/view.php?id=CVE-2015-8554
Buffer overflow in hw/pt-msi.c in Xen 4.6.x and earlier, when using the qemu-xen-traditional (aka qemu-dm) device model, allows local x86 HVM guest administrators to gain privileges by leveraging a system with access to a passed-through MSI-X capable physical PCI device and MSI-X table entries, related to a "write path." Desbordamiento de buffer en hw/pt-msi.c en Xen 4.6.x y versiones anteriores, cuando se utiliza el modelo de dispositivo qemu-xen-traditional (también conocido como qemu-dm), permite a administradores locales x86 HVM invitados obtener privilegios aprovechando un sistema con acceso a un dispositivo PCI físico con capacidad de paso a través de MSI-X y a entradas de tabla MSI-X, relacionado con una "ruta de escritura". • http://support.citrix.com/article/CTX203879 http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html http://www.securityfocus.com/bid/79579 http://www.securitytracker.com/id/1034481 http://xenbits.xen.org/xsa/advisory-164.html https://security.gentoo.org/glsa/201604-03 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 3.8EPSS: 0%CPEs: 9EXPL: 0CVE-2016-3159
https://notcve.org/view.php?id=CVE-2016-3159
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076. La función fpu_fxrstor en arch/x86/i387.c en Xen 4.x no maneja correctamente escrituras al bit FSW.ES hardware cuando se ejecuta en procesadores AMD64, lo que permite a usuarios locales del SO invitado obtener información sensible del contenido de registro de otro invitado aprovechando una excepción pendiente y bits de máscara. NOTA: esta vulnerabilidad existe por una solución incorrecta para CVE-2013-2076. • http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html http://support.citrix.com/article/CTX209443 http://www.debian.org/security/2016/dsa-3554 http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html http://www.securityfocus.com/bid/85716 http://www.securitytracker.com/id/1035435 http://xenbits.xen.org/xsa/advisory-172.html http://xenbits.xen.org/xsa/xsa172.patc • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-284: Improper Access Control •
CVSS: 3.8EPSS: 0%CPEs: 5EXPL: 0CVE-2016-3158
https://notcve.org/view.php?id=CVE-2016-3158
The xrstor function in arch/x86/xstate.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076. La función xrstor en arch/x86/xstate.c en Xen 4.x no maneja correctamente escrituras al bit FSW.ES hardware cuando se ejecuta en procesadores AMD64, lo que permite a usuarios locales del SO invitado obtener información sensible del contenido de registro de otro invitado aprovechando una excepción pendiente y bits de máscara. NOTA: esta vulnerabilidad existe por una solución incorrecta para CVE-2013-2076. • http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html http://support.citrix.com/article/CTX209443 http://www.debian.org/security/2016/dsa-3554 http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html http://www.securityfocus.com/bid/85714 http://www.securitytracker.com/id/1035435 http://xenbits.xen.org/xsa/advisory-172.html http://xenbits.xen.org/xsa/xsa172-4 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-284: Improper Access Control •
CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 0CVE-2015-8553
https://notcve.org/view.php?id=CVE-2015-8553
Xen allows guest OS users to obtain sensitive information from uninitialized locations in host OS kernel memory by not enabling memory and I/O decoding control bits. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-0777. Xen permite a usuarios del SO invitado obtener información sensible de localizaciones no inicializadas en memoria kernel del SO anfitrión impidiendo la decodificación de bits de control de memoria y I/O. NOTA: esta vulnerabilidad existe por una solución incompleta para CVE-2015-0777. • http://xenbits.xen.org/xsa/advisory-120.html https://seclists.org/bugtraq/2019/Aug/18 https://www.debian.org/security/2019/dsa-4497 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •