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CVSS: 7.5EPSS: 5%CPEs: 25EXPL: 0

26 Jul 2017 — qemu-nbd in QEMU (aka Quick Emulator) does not ignore SIGPIPE, which allows remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt. qemu-nbd en QEMU (Quick Emulator) no ignora la señal SIGPIPE, lo que permite a atacantes remotos provocar una denegación de servicio desconectando el proceso durante un intento de respuesta de servidor a cliente. Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash ... • http://www.debian.org/security/2017/dsa-3920 • CWE-248: Uncaught Exception •

CVSS: 9.8EPSS: 5%CPEs: 12EXPL: 0

23 May 2017 — In Open vSwitch (OvS) 2.7.0, while parsing an OFPT_QUEUE_GET_CONFIG_REPLY type OFP 1.0 message, there is a buffer over-read that is caused by an unsigned integer underflow in the function `ofputil_pull_queue_get_config_reply10` in `lib/ofp-util.c`. En Open vSwitch (OvS) versión 2.7.0, mientras analiza un mensaje OFPT_QUEUE_GET_CONFIG_REPLY tipo OFP versión 1.0, se presenta una lectura excesiva búfer causada por un desbordamiento de enteros sin signo en la función “ofputil_pull_queue_get_config_reply10” en l... • https://access.redhat.com/errata/RHSA-2017:2418 • CWE-190: Integer Overflow or Wraparound CWE-191: Integer Underflow (Wrap or Wraparound) •

CVSS: 10.0EPSS: 0%CPEs: 4EXPL: 0

18 May 2017 — A design flaw issue was found in the Red Hat OpenStack Platform director use of TripleO to enable libvirtd based live-migration. Libvirtd is deployed by default (by director) listening on 0.0.0.0 (all interfaces) with no-authentication or encryption. Anyone able to make a TCP connection to any compute host IP address, including 127.0.0.1, other loopback interface addresses, or in some cases possibly addresses that have been exposed beyond the management interface, could use this to open a virsh session to t... • http://www.securityfocus.com/bid/98576 • CWE-306: Missing Authentication for Critical Function •

CVSS: 7.8EPSS: 2%CPEs: 8EXPL: 0

16 May 2017 — Memory leak in the audio/audio.c in QEMU (aka Quick Emulator) allows remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture. La pérdida de memoria en el audio/audio.c en QEMU (también conocido como Quick Emulator) permite a los atacantes remotos causar una denegación de servicio (consumo de memoria) al iniciar y detener repetidamente la captura de audio. Li Qiang discovered that QEMU incorrectly handled VirtFS directory sharing. A privileged atta... • http://www.securityfocus.com/bid/98302 • CWE-772: Missing Release of Resource after Effective Lifetime •

CVSS: 6.5EPSS: 0%CPEs: 8EXPL: 0

16 May 2017 — Memory leak in the keyboard input event handlers support in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events. La pérdida de memoria en el soporte de controladores de eventos de entrada de teclado en QEMU (también conocido como Quick Emulator) permite a los usuarios privilegiados locales de SO invitados causar una denegación de servicio (consumo de memoria del host) al generar rápidamente evento... • http://www.openwall.com/lists/oss-security/2017/05/03/2 • CWE-772: Missing Release of Resource after Effective Lifetime •

CVSS: 7.8EPSS: 0%CPEs: 31EXPL: 0

02 May 2017 — Heap-based buffer overflow in Cirrus CLGD 54xx VGA Emulator in Quick Emulator (Qemu) 2.8 and earlier allows local guest OS users to execute arbitrary code or cause a denial of service (crash) via vectors related to a VNC client updating its display after a VGA operation. Desbordamiento de búfer basado en memoria dinámica (heap) en Cirrus CLGD 54xx VGA Emulator en Quick Emulator (Qemu) en versiones 2.8 y anteriores permite que los usuarios invitados del sistema operativo ejecuten código arbitrario o provoque... • http://ubuntu.com/usn/usn-3289-1 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •

CVSS: 9.9EPSS: 1%CPEs: 24EXPL: 0

18 Apr 2017 — A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process. Se ha detectado una vulnerabilidad de desbordamiento de búfer basado en memoria dinámica (heap) en... • http://www.securityfocus.com/bid/96893 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •

CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0

27 Mar 2017 — The xhci_kick_epctx function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors related to control transfer descriptor sequence. La función xhci_kick_epctx en hw/usb/hcd-xhci.c en QEMU (también conocido como Quick Emulator) permite a usuarios locales privilegiados del SO invitado provocar una denegación de servicio (bucle infinito y caída del proceso QEMU) a través de vectores relacionados c... • http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=f89b60f6e5fee3923bedf80e82b4e5efc1bb156b • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVSS: 9.9EPSS: 2%CPEs: 32EXPL: 0

27 Feb 2017 — Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process. Quick emulator (QEMU) en versiones anteriores a la 2.8 construido con el soporte del emulador Cirrus CLGD 54xx VGA Emulator es vulnerable a un p... • http://rhn.redhat.com/errata/RHSA-2017-0328.html • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •

CVSS: 9.1EPSS: 1%CPEs: 29EXPL: 0

21 Feb 2017 — Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host. Quick emulator (QEMU) con soporte integrado para el emulador Cirrus CLGD 54xx VGA es vulnerable a un problema de acceso fuera ... • http://rhn.redhat.com/errata/RHSA-2017-0309.html • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •