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CVSS: 9.1EPSS: 0%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 •

CVSS: 5.5EPSS: 0%CPEs: 32EXPL: 0

10 May 2016 — Integer overflow in the VGA module in QEMU allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) by editing VGA registers in VBE mode. Desbordamiento de entero en el módulo VGA en QEMU permite a usuarios de SO invitado locales provocar una denegación de servicio (lectura fuera de límites y caída de proceso QEMU) editando registros VGA en modo VBE. An integer overflow flaw and an out-of-bounds read flaw were found in the way QEMU's VGA emulator set certain VGA r... • http://rhn.redhat.com/errata/RHSA-2016-2585.html • CWE-125: Out-of-bounds Read CWE-190: Integer Overflow or Wraparound •

CVSS: 8.8EPSS: 0%CPEs: 47EXPL: 0

09 May 2016 — The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue. El módulo VGA en QEMU lleva a cabo incorrectamente comprobaciones de límites sobre acceso almacenado a la memoria de vídeo, lo que permite a administradores locales de SO invitado ejecutar código arbitrario sobre el anfitrión cambiando los modos de ac... • http://rhn.redhat.com/errata/RHSA-2016-0724.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 7.5EPSS: 90%CPEs: 58EXPL: 0

21 Oct 2015 — The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages. El cliente ntpd en NTP 4.x en versiones anteriores a 4.2.8p4, y 4.3.x en versiones anteriores a 4.3.77 permite que atacantes remotos provoquen una denegación de servicio empleando una serie de mensajes "KOD" manipulados. It was discovered that ntpd as a client did not correctly check timestamps in Kiss-of-Death packets. A remote attacker could use thi... • http://bugs.ntp.org/show_bug.cgi?id=2901 • CWE-20: Improper Input Validation •