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CVSS: 8.8EPSS: 0%CPEs: 108EXPL: 0

23 Apr 2014 — Off-by-one error in the cmd_smart function in the smart self test in hw/ide/core.c in QEMU before 2.0 allows local users to have unspecified impact via a SMART EXECUTE OFFLINE command that triggers a buffer underflow and memory corruption. Error de superación de límite (off-by-one) en la función cmd_smart en la autoprueba SMART en hw/ide/core.c en QEMU anterior a 2.0 permite a usuarios locales tener impacto no especificado a través de un comando SMART EXECUTE OFFLINE que provoca un subdesbordamiento de buff... • http://rhn.redhat.com/errata/RHSA-2014-0704.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-189: Numeric Errors •

CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0

22 Apr 2014 — The qcow2_open function in the (block/qcow2.c) in QEMU before 1.7.2 and 2.x before 2.0.0 allows local users to cause a denial of service (NULL pointer dereference) via a crafted image which causes an error, related to the initialization of the snapshot_offset and nb_snapshots fields. La función qcow2_open en (block/qcow2.c) en QEMU en versiones anteriores a la 1.7.2 y en versiones 2.x anteriores a la 2.0.0 permite que usuarios locales provoquen una denegación de servicio (desreferencia de puntero NULL) medi... • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=11b128f4062dd7f89b14abc8877ff20d41b28be9 • CWE-476: NULL Pointer Dereference •

CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0

22 Apr 2014 — Multiple buffer overflows in QEMU before 1.7.2 and 2.x before 2.0.0, allow local users to cause a denial of service (crash) or possibly execute arbitrary code via a large (1) L1 table in the qcow2_snapshot_load_tmp in the QCOW 2 block driver (block/qcow2-snapshot.c) or (2) uncompressed chunk, (3) chunk length, or (4) number of sectors in the DMG block driver (block/dmg.c). Múltiples desbordamientos de búfer en QEMU en versiones anteriores a la 1.7.2 y en versiones 2.x anteriores a la 2.0.0 permiten que usua... • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=c05e4667be91b46ab42b5a11babf8e84d476cc6b • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0

22 Apr 2014 — QEMU, possibly before 2.0.0, allows local users to cause a denial of service (divide-by-zero error and crash) via a zero value in the (1) tracks field to the seek_to_sector function in block/parallels.c or (2) extent_size field in the bochs function in block/bochs.c. QEMU, posiblemente en versiones anteriores a la 2.0.0, permite que usuarios locales provoquen una denegación de servicio (error de división entre cero y bloqueo) mediante un valor cero en el campo de seguimiento (1) en la función seek_to_sector... • http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=8e53abbc20d08ae3ec30c2054e1161314ad9501d • CWE-369: Divide By Zero •

CVSS: 7.0EPSS: 0%CPEs: 2EXPL: 0

22 Apr 2014 — Multiple integer overflows in the block drivers in QEMU, possibly before 2.0.0, allow local users to cause a denial of service (crash) via a crafted catalog size in (1) the parallels_open function in block/parallels.c or (2) bochs_open function in bochs.c, a large L1 table in the (3) qcow2_snapshot_load_tmp in qcow2-snapshot.c or (4) qcow2_grow_l1_table function in qcow2-cluster.c, (5) a large request in the bdrv_check_byte_request function in block.c and other block drivers, (6) crafted cluster indexes in ... • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=509a41bab5306181044b5fff02eadf96d9c8676a • CWE-190: Integer Overflow or Wraparound •

CVSS: 8.6EPSS: 2%CPEs: 9EXPL: 0

22 Apr 2014 — QEMU before 2.0.0 block drivers for CLOOP, QCOW2 version 2 and various other image formats are vulnerable to potential memory corruptions, integer/buffer overflows or crash caused by missing input validations which could allow a remote user to execute arbitrary code on the host with the privileges of the QEMU process. Los controladores de bloque de QEMU versiones anteriores a 2.0.0 para CLOOP, QCOW2 versión 2 y varios otros formatos de imagen son vulnerables a posibles corrupciones de memoria, desbordamient... • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=24342f2cae47d03911e346fe1e520b00dc2818e0 • CWE-20: Improper Input Validation •

CVSS: 6.2EPSS: 0%CPEs: 10EXPL: 0

22 Apr 2014 — Qemu before 1.6.2 block diver for the various disk image formats used by Bochs and for the QCOW version 2 format, are vulnerable to a possible crash caused by signed data types or a logic error while creating QCOW2 snapshots, which leads to incorrectly calling update_refcount() routine. Qemu versiones anteriores a 1.6.2 del buceador de bloques para los distintos formatos de imagen de disco usados por Bochs y para el formato QCOW versión 2, son vulnerables a un posible bloqueo causado por los tipos de datos ... • http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=246f65838d19db6db55bfb41117c35645a2c4789 • CWE-190: Integer Overflow or Wraparound •

CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0

22 Apr 2014 — Qemu before 2.0 block driver for Hyper-V VHDX Images is vulnerable to infinite loops and other potential issues when calculating BAT entries, due to missing bounds checks for block_size and logical_sector_size variables. These are used to derive other fields like 'sectors_per_block' etc. A user able to alter the Qemu disk image could ise this flaw to crash the Qemu instance resulting in DoS. El controlador de bloques de Qemu versiones anteriores a 2.0 para imágenes VHDX de Hyper-V es vulnerable a bucles inf... • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=1d7678dec4761acdc43439da6ceda41a703ba1a6 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVSS: 9.8EPSS: 0%CPEs: 99EXPL: 0

18 Apr 2014 — Integer overflow in the virtio_net_handle_mac function in hw/net/virtio-net.c in QEMU 2.0 and earlier allows local guest users to execute arbitrary code via a MAC addresses table update request, which triggers a heap-based buffer overflow. Desbordamiento de eneteros en la función virtio_net_handle_mac en hw/net/virtio-net.c en QEMU 2.0 y anteriores permite a usuarios locales invitados ejecutar código arbitrario a través de una solicitud de actualización de tabla de direcciones MAC, lo que provoca un desbord... • http://article.gmane.org/gmane.comp.emulators.qemu/266768 • CWE-189: Numeric Errors •

CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 2

01 Apr 2014 — Buffer overflow in hw/scsi-disk.c in the SCSI subsystem in QEMU before 0.15.2, as used by Xen, might allow local guest users with permission to access the CD-ROM to cause a denial of service (guest crash) via a crafted SAI READ CAPACITY SCSI command. NOTE: this is only a vulnerability when root has manually modified certain permissions or ACLs. Desbordamiento de buffer en hw/scsi-disk.c en el subsistema SCSI en QEMU anterior a 0.15.2, utilizado por Xen, podría permitir a usuarios locales invitados con permi... • http://git.qemu.org/?p=qemu-stable-0.15.git%3Ba=log • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •