
CVE-2014-9065 – Gentoo Linux Security Advisory 201504-04
https://notcve.org/view.php?id=CVE-2014-9065
09 Dec 2014 — 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... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-17: DEPRECATED: Code •

CVE-2014-9066 – Gentoo Linux Security Advisory 201504-04
https://notcve.org/view.php?id=CVE-2014-9066
09 Dec 2014 — 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 ... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-17: DEPRECATED: Code •

CVE-2014-8866 – Gentoo Linux Security Advisory 201504-04
https://notcve.org/view.php?id=CVE-2014-8866
01 Dec 2014 — The compatibility mode hypercall argument translation in Xen 3.3.x through 4.4.x, when running on a 64-bit hypervisor, allows local 32-bit HVM guests to cause a denial of service (host crash) via vectors involving altering the high halves of registers while in 64-bit mode. La traducción del argumento de hiperllamadas del modo de compatibilidad en Xen 3.3.x hasta 4.4.x, cuando funciona en un hipervisor de 64 bits, permite a invitados locales de HVM de 32 bits causar una denegación de servicio (caída del anfi... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-17: DEPRECATED: Code •

CVE-2014-8867 – xen: Insufficient bounding of "REP MOVS" to MMIO emulated inside the hypervisor (xsa112)
https://notcve.org/view.php?id=CVE-2014-8867
01 Dec 2014 — The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors. El soporte de aceleración para la instrucción 'REP MOVS' en Xen 4.4.x, 3.2.x, y anteriores falla en la comprobación correcta de los límites para entrada/salida del mapeado de memoria (memory mapped I/O, MMIO) emulado en el hipervisor, lo ... • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 • CWE-17: DEPRECATED: Code •

CVE-2014-9030 – Gentoo Linux Security Advisory 201504-04
https://notcve.org/view.php?id=CVE-2014-9030
24 Nov 2014 — The do_mmu_update function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMU_MACHPHYS_UPDATE. La función do_mmu_update en arch/x86/mm.c en Xen 3.2.x hasta 4.4.x no maneja debidamente las referencias de páginas, lo que permite a dominios remotos causar una denegación de servicio mediante el aprovechamiento del control sobre un invitado HVM y un MMU_MACHPHYS_UP... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-20: Improper Input Validation •

CVE-2014-8594 – Gentoo Linux Security Advisory 201504-04
https://notcve.org/view.php?id=CVE-2014-8594
19 Nov 2014 — The do_mmu_update function in arch/x86/mm.c in Xen 4.x through 4.4.x does not properly restrict updates to only PV page tables, which allows remote PV guests to cause a denial of service (NULL pointer dereference) by leveraging hardware emulation services for HVM guests using Hardware Assisted Paging (HAP). La función do_mmu_update en arch/x86/mm.c en Xen 4.x hasta la versión 4.4.x no restringe adecuadamente las actualizaciones a las tablas de página sólo para PV, lo que permite a invitados PV remotos provo... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-20: Improper Input Validation •

CVE-2014-8595 – Gentoo Linux Security Advisory 201504-04
https://notcve.org/view.php?id=CVE-2014-8595
19 Nov 2014 — arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction. El fichero arch/x86/x86_emulate.c in Xen 3.2.1 hasta 4.4.x no comprueba correctamente los privilegios, lo que permite a los usuarios invitados HVM locales conseguir privilegios o causar una denegación de servicio (caída) a ... • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html • CWE-17: DEPRECATED: Code •

CVE-2014-5148
https://notcve.org/view.php?id=CVE-2014-5148
26 Oct 2014 — Xen 4.4.x, when running on an ARM system and "handling an unknown system register access from 64-bit userspace," returns to an instruction of the trap handler for kernel space faults instead of an instruction that is associated with faults in 64-bit userspace, which allows local guest users to cause a denial of service (crash) and possibly gain privileges via a crafted process. Xen 4.4.x, cuando funciona con un sistema ARM y 'maneja un acceso al registro de un sistema desconocido de un espacio de usuario de... • http://secunia.com/advisories/59934 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVE-2014-7154 – Gentoo Linux Security Advisory 201412-42
https://notcve.org/view.php?id=CVE-2014-7154
01 Oct 2014 — Race condition in HVMOP_track_dirty_vram in Xen 4.0.0 through 4.4.x does not ensure possession of the guarding lock for dirty video RAM tracking, which allows certain local guest domains to cause a denial of service via unspecified vectors. Condición de carrera en HVMOP_track_dirty_vram en Xen 4.0.0 hasta 4.4.x no asegura la posesión del bloqueo de guardar para el seguimiento RAM de vídeos sucios, lo que permite a dominios locales de huésped causar una denegación de servicio a través de vectores no especifi... • http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVE-2014-7155 – Gentoo Linux Security Advisory 201412-42
https://notcve.org/view.php?id=CVE-2014-7155
01 Oct 2014 — The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 4.4.x and earlier does not properly check supervisor mode permissions, which allows local HVM users to cause a denial of service (guest crash) or gain guest kernel mode privileges via vectors involving an (1) HLT, (2) LGDT, (3) LIDT, or (4) LMSW instruction. La función x86_emulate en arch/x86/x86_emulate/x86_emulate.c en Xen 4.4.x y anteriores no comprueba debidamente los permisos del modo de supervisor, lo que permite a usuarios locales ... • http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html • CWE-264: Permissions, Privileges, and Access Controls •