CVSS: 7.4EPSS: 0%CPEs: 60EXPL: 0CVE-2011-2212 – qemu-kvm: virtqueue: too-large indirect descriptor buffer overflow
https://notcve.org/view.php?id=CVE-2011-2212
Buffer overflow in the virtio subsystem in qemu-kvm 0.14.0 and earlier allows privileged guest users to cause a denial of service (guest crash) or gain privileges via a crafted indirect descriptor related to "virtqueue in and out requests." Desbordamiento de búfer en el subsistema de virtio en qemu-kvm v0.14.0 y anteriores permite causar una denegación de servicio u obtener privilegios a los usuarios privilegiados invitados a través de un descriptor indirecto debidamente modificado relacionado con "virtqueue dentro y fuera de las solicitudes." • http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00007.html http://rhn.redhat.com/errata/RHSA-2011-0919.html http://secunia.com/advisories/45158 http://secunia.com/advisories/45170 http://secunia.com/advisories/45187 http://secunia.com/advisories/45188 http://secunia.com/advisories/45301 http://secunia.com/advisories/45354 http://ubuntu.com/usn/usn-1165-1 http://www.osvdb.org/74751 https://bugzilla.redhat.com/show_bug.cgi?id=713589 https://hermes.o • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 7.4EPSS: 0%CPEs: 74EXPL: 0CVE-2011-1751 – qemu: acpi_piix4: missing hotplug check during device removal
https://notcve.org/view.php?id=CVE-2011-1751
The pciej_write function in hw/acpi_piix4.c in the PIIX4 Power Management emulation in qemu-kvm does not check if a device is hotpluggable before unplugging the PCI-ISA bridge, which allows privileged guest users to cause a denial of service (guest crash) and possibly execute arbitrary code by sending a crafted value to the 0xae08 (PCI_EJ_BASE) I/O port, which leads to a use-after-free related to "active qemu timers." La función pciej_write en hw/acpi_piix4.c en la emulación de PIIX4 Power Management en qemu-kvm no comprueba si un dispositivo es conectable en caliente antes de desconectar el puente PCI-ISA, lo que permite causar una denegación de servicio y posiblemente ejecutar código de su elección a los usuarios privilegiados invitados mediante el envío de un valor específico al puerto I/O 0xae08 (PCI_EJ_BASE), lo que provoca a un uso después de liberación relacionado con "temporizadores qemu activos". • http://blog.nelhage.com/2011/08/breaking-out-of-kvm http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commit%3Bh=505597e4476a6bc219d0ec1362b760d71cb4fdca http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg01810.html http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html http://rhn.redhat.com/errata/RHSA-2011-0534.html http://secunia.com/advisories/44393 http://secunia.com/advisories/44458 http://secunia.com/advisories/44648 http://secunia.com/advisories/44658 • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 4.3EPSS: 1%CPEs: 17EXPL: 0CVE-2011-0011 – qemu-kvm: Setting VNC password to empty string silently disables all authentication
https://notcve.org/view.php?id=CVE-2011-0011
qemu-kvm before 0.11.0 disables VNC authentication when the password is cleared, which allows remote attackers to bypass authentication and establish VNC sessions. qemu-kvm antes de v0.11.0 deshabilita la autenticación VNC cuando la contraseña es eliminada, lo que permite a atacantes remotos eludir la autenticación y establecer sesiones VNC. • http://rhn.redhat.com/errata/RHSA-2011-0345.html http://secunia.com/advisories/42830 http://secunia.com/advisories/43272 http://secunia.com/advisories/43733 http://secunia.com/advisories/44393 http://ubuntu.com/usn/usn-1063-1 http://www.openwall.com/lists/oss-security/2011/01/10/3 http://www.openwall.com/lists/oss-security/2011/01/11/1 http://www.openwall.com/lists/oss-security/2011/01/12/2 http://www.osvdb.org/70992 https://bugs.launchpad.net • CWE-287: Improper Authentication •
CVSS: 7.2EPSS: 0%CPEs: 41EXPL: 0CVE-2010-0297 – kvm-userspace-rhel5: usb-linux.c: fix buffer overflow
https://notcve.org/view.php?id=CVE-2010-0297
Buffer overflow in the usb_host_handle_control function in the USB passthrough handling implementation in usb-linux.c in QEMU before 0.11.1 allows guest OS users to cause a denial of service (guest OS crash or hang) or possibly execute arbitrary code on the host OS via a crafted USB packet. Desbordamiento de búfer en la función usb_host_handle_control en la implementación del manejo a través de usb-linux.c en QEMU anterior a 0.11.1, permite a invitados del SO provocar una denegación de servicio (caída o cuelgue del sistema) o posiblemente la ejecución de código de su elección a través de un paquete USB manipulado. • http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=babd03fde68093482528010a5435c14ce9128e3f http://marc.info/?l=oss-security&m=126510479211473&w=2 http://marc.info/?l=oss-security&m=126527304127254&w=2 http://wiki.qemu.org/ChangeLog http://www.mail-archive.com/kvm%40vger.kernel.org/msg18447.html http://www.mail-archive.com/kvm%40vger.kernel.org/msg19581.html http://www.mail-archive.com/kvm%40vger.kernel.org/msg19596.html http://www.securityfocus.com/bid/38158 https://bugzi • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 9.9EPSS: 0%CPEs: 3EXPL: 3CVE-2009-3616
https://notcve.org/view.php?id=CVE-2009-3616
Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then (1) disconnecting during data transfer, (2) sending a message using incorrect integer data types, or (3) using the Fuzzy Screen Mode protocol, related to double free vulnerabilities. Múltiples vulnerabilidades de uso anterior a la liberación en vnc.c del servidor VNC en QEMU v0.10.6 y anteriores, permite a usuarios del sistema anfitrión ejecutar código de su elección en el sistema hospedado, estableciendo una conexión desde el cliente VNC y a continuación (1) desconectando durante la transferencia de datos, (2) enviando un mensaje utilizando tipos de datos enteros incorrectos, o (3) utilizando el protocolo Fuzzy Screen Mode, relativo a una doble liberación de vulnerabilidades. • http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=198a0039c5 http://git.savannah.gnu.org/cgit/qemu.git/commit/?id=753b405331 http://marc.info/?l=qemu-devel&m=124324043812915 http://rhn.redhat.com/errata/RHEA-2009-1272.html http://www.openwall.com/lists/oss-security/2009/10/16/5 http://www.openwall.com/lists/oss-security/2009/10/16/8 http://www.securityfocus.com/bid/36716 https://bugzilla.redhat.com/show_bug.cgi?id=501131 https://bugzilla.redhat.com& • CWE-416: Use After Free •