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

29 Aug 2018 — qemu-seccomp.c in QEMU might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread. qemu-seccomp.c en QEMU podría permitir que usuarios locales del sistema operativo provoquen una denegación de servicio (cierre inesperado del guest) aprovechando la gestión incorrecta de la política seccomp para hilos diferentes al principal. Kernel-based Virtual Machine is a full virtualization solution for Linux on a vari... • http://www.openwall.com/lists/oss-security/2018/08/28/6 • CWE-184: Incomplete List of Disallowed Inputs •

CVSS: 7.5EPSS: 5%CPEs: 7EXPL: 3

21 Jun 2018 — qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_malloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket. qmp_guest_file_read en qga/commands-posix.c y qga/commands-win32.c en qemu-ga (también conocido como QEM... • https://packetstorm.news/files/id/148284 • CWE-190: Integer Overflow or Wraparound •

CVSS: 8.2EPSS: 0%CPEs: 27EXPL: 0

07 Jun 2018 — m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams. m_cat en slirp/mbuf.c en Qemu tiene un desbordamiento de búfer basado en memoria dinámica (heap) mediante los datagramas entrantes fragmentados. A heap buffer overflow issue was found in the way SLiRP networking back-end in QEMU processes fragmented packets. It could occur while reassembling the fragmented datagrams of an incoming packet. A privileged user/process inside guest could use this flaw to crash the Q... • http://www.openwall.com/lists/oss-security/2018/06/07/1 • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •

CVSS: 5.5EPSS: 0%CPEs: 16EXPL: 0

12 Mar 2018 — Quick Emulator (aka QEMU), when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds access and QEMU process crash) by leveraging incorrect region calculation when updating VGA display. Quick Emulator (también conocido como QEMU), cuando se integra con soporte para Cirrus CLGD 54xx VGA Emulator, permite que usuarios privilegiados locales, invitados del sistema operativo, provoquen una denegación de servicio (acceso fuera de ... • http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00042.html • CWE-125: Out-of-bounds Read •

CVSS: 8.8EPSS: 0%CPEs: 18EXPL: 0

01 Mar 2018 — The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access. La función load_multiboot en hw/i386/multiboot.c en Quick Emulator (también conocido como QEMU) permite que usuarios locales invitados del sistema operativo ejecuten código arbitrario en el host QEMU mediante un valor mh_load_end_addr mayor ... • http://www.securityfocus.com/bid/103181 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •

CVSS: 8.6EPSS: 1%CPEs: 6EXPL: 0

20 Feb 2018 — The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS. El servidor Network Block Device (NBD) en Quick Emulator (QEMU) en versiones anteriores a la 2.11 es vulnerable a un problema de denegación de servicio (DoS). Esto puede oc... • http://www.openwall.com/lists/oss-security/2017/11/28/9 • CWE-400: Uncontrolled Resource Consumption •

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

31 Jan 2018 — Integer overflow in the macro ROUND_UP (n, d) in Quick Emulator (Qemu) allows a user to cause a denial of service (Qemu process crash). Desbordamiento de enteros en la macro ROUND_UP (n, d) en Quick Emulator (Qemu) permite que un usuario provoque una denegación de servicio (cierre inesperado del proceso Qemu) USN-3575-1 fixed vulnerabilities in QEMU. The fix for CVE-2017-11334 caused a regression in Xen environments. This update removes the problematic fix pending further investigation. It was discovered th... • http://www.openwall.com/lists/oss-security/2018/01/19/1 • CWE-190: Integer Overflow or Wraparound •

CVSS: 4.4EPSS: 0%CPEs: 2EXPL: 0

23 Jan 2018 — The cirrus_invalidate_region function in hw/display/cirrus_vga.c in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors related to negative pitch. La función cirrus_invalidate_region en hw/display/cirrus_vga.c en Qemu permite que usuarios del sistema operativo invitados con privilegios provoquen una denegación de servicio (acceso al array fuera de límites y cierre inesperado del proceso Qemu) mediante vectores relacionados ... • http://www.openwall.com/lists/oss-security/2018/01/15/3 • CWE-125: Out-of-bounds Read •

CVSS: 6.0EPSS: 0%CPEs: 18EXPL: 1

23 Jan 2018 — The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation. La función vga_draw_text en Qemu permite que usuarios del sistema operativo invitados con privilegios provoquen una denegación de servicio (acceso de lectura fuera de límites y cierre inesperado del proceso Qemu) aprovechando la validación indebida de direcciones de memoria. An out-of-bounds read access issue was ... • http://www.openwall.com/lists/oss-security/2018/01/15/2 • CWE-125: Out-of-bounds Read •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

09 Jan 2018 — VNC server implementation in Quick Emulator (QEMU) 2.11.0 and older was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A malicious remote VNC client could use this flaw to cause DoS to the server host. Se ha descubierto que la implementación del servidor VNC en Quick Emulator (QEMU) 2.11.0 y anteriores es vulnerable a un ... • http://www.securityfocus.com/bid/102295 • CWE-20: Improper Input Validation CWE-770: Allocation of Resources Without Limits or Throttling •