
CVE-2012-3516
https://notcve.org/view.php?id=CVE-2012-3516
23 Nov 2012 — The GNTTABOP_swap_grant_ref sub-operation in the grant table hypercall in Xen 4.2 and Citrix XenServer 6.0.2 allows local guest kernels or administrators to cause a denial of service (host crash) and possibly gain privileges via a crafted grant reference that triggers a write to an arbitrary hypervisor memory location. La sub-operación GNTTABOP_swap_grant_ref en el "grant table hypercall" en Xen v4.2 y Citrix XenServer v6.0.2 permite a los kernels locales de invitado o administradores causar una denegación ... • http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00004.html • CWE-264: Permissions, Privileges, and Access Controls •

CVE-2012-4537 – kernel: xen: Memory mapping failure can crash Xen
https://notcve.org/view.php?id=CVE-2012-4537
21 Nov 2012 — 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 operat... • http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html • CWE-16: Configuration •

CVE-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
21 Nov 2012 — 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". Multiple vulnerabilities have... • http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html • CWE-399: Resource Management Errors •

CVE-2012-4539 – Gentoo Linux Security Advisory 201309-24
https://notcve.org/view.php?id=CVE-2012-4539
21 Nov 2012 — Xen 4.0 through 4.2, when running 32-bit x86 PV guests on 64-bit hypervisors, allows local guest OS administrators to cause a denial of service (infinite loop and hang or crash) via invalid arguments to GNTTABOP_get_status_frames, aka "Grant table hypercall infinite loop DoS vulnerability." Xen 4.0 hasta 4.2, al ejecutar clientes 32-bit x86 PV en hipervisores 64-bit, permite a los administradores locales del sistema operativo cliente causar una denegación de servicio (bucle infinito y cuelgue o caída) a tra... • http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00008.html • CWE-399: Resource Management Errors •

CVE-2012-4544 – xen: Xen domain builder Out-of-memory due to malicious kernel/ramdisk
https://notcve.org/view.php?id=CVE-2012-4544
31 Oct 2012 — 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 ... • http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091832.html • CWE-20: Improper Input Validation •

CVE-2012-2625 – xen: pv bootloader doesn't check the size of the bzip2 or lzma compressed kernel
https://notcve.org/view.php?id=CVE-2012-2625
31 Oct 2012 — The PyGrub boot loader in Xen unstable before changeset 25589:60f09d1ab1fe, 4.2.x, and 4.1.x allows local para-virtualized guest users to cause a denial of service (memory consumption) via a large (1) bzip2 or (2) lzma compressed kernel image. El gestor de arranque Pygrub en Xen inestable ante del changeset 25589:60f09d1ab1fe, v4.2.x, v4.1.x permite causar una denegación de servicio (consumo de memoria) a usuarios locales para-virtualizados a través de una imagen del kernel comprimida en (1) o bzip2 (2) lzm... • http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1817 • CWE-20: Improper Input Validation •

CVE-2012-0217 – FreeBSD - Intel SYSRET Privilege Escalation
https://notcve.org/view.php?id=CVE-2012-0217
12 Jun 2012 — The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix XenServer 6.0.2 and earlier and other products; Oracle Solaris 11 and earlier; illumos before r13724; Joyent SmartOS before 20120614T184600Z; FreeBSD before 9.0-RELEASE-p3; NetBSD 6.0 Beta and earlier; Microsoft Windows Server 2008 R2 and R2 SP1 and Windows 7 Gold and SP1; and possibly other operating systems, when running on an Intel processor, incorrectly uses the sysret path in cases where a certain address is not a c... • https://packetstorm.news/files/id/152001 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVE-2011-3262 – xen: insufficiencies in pv kernel image validation
https://notcve.org/view.php?id=CVE-2011-3262
19 Aug 2011 — tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allows local users to cause a denial of service (management software infinite loop and management domain resource consumption) via unspecified vectors related to "Lack of error checking in the decompression loop." tools/libxc/xc_dom_bzimageloader.c en Xen v3.2, v3.3, v4.0 y v4.1 permite a usuarios locales provocar una denegación de servicio (bucle infinito de software de gestión y excesivo consumo de recursos en el administrador de dominios) a... • http://lists.xensource.com/archives/html/xen-devel/2011-05/msg00483.html • CWE-399: Resource Management Errors •

CVE-2011-1583 – xen: insufficiencies in pv kernel image validation
https://notcve.org/view.php?id=CVE-2011-1583
12 Aug 2011 — Multiple integer overflows in tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allow local users to cause a denial of service and possibly execute arbitrary code via a crafted paravirtualised guest kernel image that triggers (1) a buffer overflow during a decompression loop or (2) an out-of-bounds read in the loader involving unspecified length fields. Múltiples desbordamientos de entero en tools/libxc/xc_dom_bzimageloader.c en Xen v3.2, v3.3, v4.0, y v4.1 permite a usuarios locales provocar... • http://lists.xensource.com/archives/html/xen-devel/2011-05/msg00483.html • CWE-189: Numeric Errors •

CVE-2011-1898 – virt: VT-d (PCI passthrough) MSI trap injection
https://notcve.org/view.php?id=CVE-2011-1898
12 Aug 2011 — Xen 4.1 before 4.1.1 and 4.0 before 4.0.2, when using PCI passthrough on Intel VT-d chipsets that do not have interrupt remapping, allows guest OS users to gain host OS privileges by "using DMA to generate MSI interrupts by writing to the interrupt injection registers." Xen v4.1 anterior a v4.1.1 y v4.0 anterior a v4.0.2, cuando usa PCI passthrough sobre chipsets Intel VT-d que no tienen que interrumplir remapeado, permite a usuarios invitados del OS obtener privilegios de anfitrión "usando DMA para generar... • http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062112.html • CWE-264: Permissions, Privileges, and Access Controls CWE-284: Improper Access Control •