CVSS: 6.0EPSS: 0%CPEs: 2EXPL: 0CVE-2024-5661 – Potential Denial of Service affecting XenServer and Citrix Hypervisor
https://notcve.org/view.php?id=CVE-2024-5661
13 Jun 2024 — An issue has been identified in both XenServer 8 and Citrix Hypervisor 8.2 CU1 LTSR which may allow a malicious administrator of a guest VM to cause the host to become slow and/or unresponsive. Se ha identificado un problema tanto en XenServer 8 como en Citrix Hypervisor 8.2 CU1 LTSR que puede permitir que un administrador malintencionado de una máquina virtual invitada haga que el host se vuelva lento o no responda. • https://support.citrix.com/article/CTX677100/xenserver-and-citrix-hypervisor-security-update-for-cve20245661 •
CVSS: 9.9EPSS: 1%CPEs: 24EXPL: 0CVE-2016-9603 – Qemu: cirrus: heap buffer overflow via vnc connection
https://notcve.org/view.php?id=CVE-2016-9603
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: 9.9EPSS: 2%CPEs: 32EXPL: 0CVE-2017-2620 – Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo
https://notcve.org/view.php?id=CVE-2017-2620
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: 0CVE-2017-2615 – Qemu: display: cirrus: oob access while doing bitblt copy backward mode
https://notcve.org/view.php?id=CVE-2017-2615
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: 9.8EPSS: 1%CPEs: 1EXPL: 0CVE-2016-5302
https://notcve.org/view.php?id=CVE-2016-5302
13 Jun 2016 — Citrix XenServer 7.0 before Hotfix XS70E003, when a deployment has been upgraded from an earlier release, might allow remote attackers on the management network to "compromise" a host by leveraging credentials for an Active Directory account. Citrix XenServer 7.0 en versiones anteriores a Hotfix XS70E003, cuando un despliegue se ha actualizado desde una versión anterior, podría permitir a atacantes remotos en la red de gestión "comprometer" un host aprovechando las credenciales para una cuenta Active Direct... • http://support.citrix.com/article/CTX213549 • CWE-284: Improper Access Control •
CVSS: 5.5EPSS: 0%CPEs: 32EXPL: 0CVE-2016-3712 – qemu-kvm: Out-of-bounds read when creating weird vga screen surface
https://notcve.org/view.php?id=CVE-2016-3712
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: 0CVE-2016-3710 – qemu: incorrect banked access bounds checking in vga module
https://notcve.org/view.php?id=CVE-2016-3710
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: 6.3EPSS: 0%CPEs: 37EXPL: 0CVE-2016-1571 – Debian Security Advisory 3519-1
https://notcve.org/view.php?id=CVE-2016-1571
22 Jan 2016 — The paging_invlpg function in include/asm-x86/paging.h in Xen 3.3.x through 4.6.x, when using shadow mode paging or nested virtualization is enabled, allows local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check. La función paging_invlpg en include/asm-x86/paging.h en Xen 3.3.x hasta la versión 4.6.x, cuando se utiliza paginación en modo shadow o la virtualización anidada está habilitada, permite a us... • http://support.citrix.com/article/CTX205496 • CWE-17: DEPRECATED: Code •
CVSS: 7.8EPSS: 0%CPEs: 11EXPL: 0CVE-2012-3495 – Gentoo Linux Security Advisory 201309-24
https://notcve.org/view.php?id=CVE-2012-3495
23 Nov 2012 — The physdev_get_free_pirq hypercall in arch/x86/physdev.c in Xen 4.1.x and Citrix XenServer 6.0.2 and earlier uses the return value of the get_free_pirq function as an array index without checking that the return value indicates an error, which allows guest OS users to cause a denial of service (invalid memory write and host crash) and possibly gain privileges via unspecified vectors. La hypercall physdev_get_free_pirq en arch/x86/physdev.c en Xen v4.1.x y Citrix XenServer v6.0.2 y anteriores utiliza el val... • http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html • CWE-20: Improper Input Validation •
CVSS: 9.8EPSS: 0%CPEs: 3EXPL: 0CVE-2012-3498 – Gentoo Linux Security Advisory 201309-24
https://notcve.org/view.php?id=CVE-2012-3498
23 Nov 2012 — PHYSDEVOP_map_pirq in Xen 4.1 and 4.2 and Citrix XenServer 6.0.2 and earlier allows local HVM guest OS kernels to cause a denial of service (host crash) and possibly read hypervisor or guest memory via vectors related to a missing range check of map->index. PHYSDEVOP_map_pirq en Xen v4.1 y v4.2 y Citrix XenServer v6.0.2 y anteriores permite a un kernel OS HVM invitado causar una denegación de servicio (caída del host) y posiblemente leer hipervisor o memoria mediante vectores relacionados con una falta de c... • http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00003.html • CWE-20: Improper Input Validation •