CVSS: 8.8EPSS: 0%CPEs: 8EXPL: 0CVE-2016-1568 – Qemu: ide: ahci use-after-free vulnerability in aio port commands
https://notcve.org/view.php?id=CVE-2016-1568
Use-after-free vulnerability in hw/ide/ahci.c in QEMU, when built with IDE AHCI Emulation support, allows guest OS users to cause a denial of service (instance crash) or possibly execute arbitrary code via an invalid AHCI Native Command Queuing (NCQ) AIO command. Vulnerabilidad de uso después de liberación de memoria en hw/ide/ahci.c en QEMU, cuando se construye con soporte de emulación IDE AHCI, permite a usuarios del SO invitado causar una denegación de servicio (caída de instancia) o posiblemente ejecutar código arbitrario a través de un comando AHCI Native Command Queuing (NCQ) AIO no válido. A use-after-free flaw was found in the way QEMU's IDE AHCI emulator processed certain AHCI Native Command Queuing (NCQ) AIO commands. A privileged guest user could use this flaw to crash the QEMU process instance or, potentially, execute arbitrary code on the host with privileges of the QEMU process. • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=4ab0359a8ae182a7ac5c99609667273167703fab http://rhn.redhat.com/errata/RHSA-2016-0084.html http://rhn.redhat.com/errata/RHSA-2016-0086.html http://rhn.redhat.com/errata/RHSA-2016-0087.html http://rhn.redhat.com/errata/RHSA-2016-0088.html http://www.debian.org/security/2016/dsa-3469 http://www.debian.org/security/2016/dsa-3470 http://www.debian.org/security/2016/dsa-3471 http://www.openwall.com/lists/oss-security/2016/0 • CWE-416: Use After Free •
CVSS: 8.1EPSS: 0%CPEs: 4EXPL: 0CVE-2016-1714 – Qemu: nvram: OOB r/w access in processing firmware configurations
https://notcve.org/view.php?id=CVE-2016-1714
The (1) fw_cfg_write and (2) fw_cfg_read functions in hw/nvram/fw_cfg.c in QEMU before 2.4, when built with the Firmware Configuration device emulation support, allow guest OS users with the CAP_SYS_RAWIO privilege to cause a denial of service (out-of-bounds read or write access and process crash) or possibly execute arbitrary code via an invalid current entry value in a firmware configuration. Las funciones (1) fw_cfg_write y (2) fw_cfg_read en hw/nvram/fw_cfg.c en QEMU en versiones anteriores a 2.4, cuando construye con el soporte de emulación de dispositivo de Firmware Configuration, permiten a usuarios del SO invitado con el privilegio CAP_SYS_RAWIO provocar una denegación de servicio (acceso a lectura o escritura fuera de rango y caída del proceso) o potencialmente ejecutar código arbitrario a través de un valor de entrada actual no válido en una configuración de firmware. An out-of-bounds read/write flaw was discovered in the way QEMU's Firmware Configuration device emulation processed certain firmware configurations. A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the QEMU process instance or, potentially, execute arbitrary code on the host with privileges of the QEMU process. • http://rhn.redhat.com/errata/RHSA-2016-0081.html http://rhn.redhat.com/errata/RHSA-2016-0082.html http://rhn.redhat.com/errata/RHSA-2016-0083.html http://rhn.redhat.com/errata/RHSA-2016-0084.html http://rhn.redhat.com/errata/RHSA-2016-0085.html http://rhn.redhat.com/errata/RHSA-2016-0086.html http://rhn.redhat.com/errata/RHSA-2016-0087.html http://rhn.redhat.com/errata/RHSA-2016-0088.html http://www.debian.org/security/2016/dsa-3469 http://www.debia • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •
CVSS: 10.0EPSS: 1%CPEs: 1EXPL: 3CVE-2015-8556 – QEMU (Gentoo) - Local Privilege Escalation
https://notcve.org/view.php?id=CVE-2015-8556
Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1. Vulnerabilidad de escalada de privilegios locales en el paquete Gentoo QEMU en versiones anteriores a 2.5.0-r1. • https://www.exploit-db.com/exploits/39010 http://packetstormsecurity.com/files/134948/Gentoo-QEMU-Local-Privilege-Escalation.html https://security.gentoo.org/glsa/201602-01 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 6.5EPSS: 0%CPEs: 6EXPL: 0CVE-2015-8345
https://notcve.org/view.php?id=CVE-2015-8345
The eepro100 emulator in QEMU qemu-kvm blank allows local guest users to cause a denial of service (application crash and infinite loop) via vectors involving the command block list. El emulador de eepro100 en qemu-kvm de QEMU permite a los usuarios huéspedes locales provocar una denegación de servicio (fallo de la aplicación y bucle infinito) a través de vectores que implican la lista de bloqueo de comandos. • http://www.debian.org/security/2016/dsa-3469 http://www.debian.org/security/2016/dsa-3470 http://www.debian.org/security/2016/dsa-3471 http://www.openwall.com/lists/oss-security/2015/11/25/11 http://www.securityfocus.com/bid/77985 https://lists.gnu.org/archive/html/qemu-devel/2015-10/msg03911.html https://security.gentoo.org/glsa/201602-01 • CWE-399: Resource Management Errors •
CVSS: 8.8EPSS: 0%CPEs: 7EXPL: 0CVE-2015-7504 – Qemu: net: pcnet: heap overflow vulnerability in pcnet_receive
https://notcve.org/view.php?id=CVE-2015-7504
Heap-based buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service (instance crash) or possibly execute arbitrary code via a series of packets in loopback mode. Desbordamiento de búfer basado en memoria dinámica (heap) en la función pcnet_receive en hw/net/pcnet.c en QEMU permite que administradores del sistema operativo invitados provoquen una denegación de servicio (cierre inesperado de la instancia) o que puedan ejecutar código arbitrario mediante una serie de paquetes en modo de bucle invertido. A heap-based buffer overflow flaw was discovered in the way QEMU's AMD PC-Net II Ethernet Controller emulation received certain packets in loopback mode. A privileged user (with the CAP_SYS_RAWIO capability) inside a guest could use this flaw to crash the host QEMU process (resulting in denial of service) or, potentially, execute arbitrary code with privileges of the host QEMU process. • http://rhn.redhat.com/errata/RHSA-2015-2694.html http://rhn.redhat.com/errata/RHSA-2015-2695.html http://rhn.redhat.com/errata/RHSA-2015-2696.html http://www.debian.org/security/2016/dsa-3469 http://www.debian.org/security/2016/dsa-3470 http://www.debian.org/security/2016/dsa-3471 http://www.openwall.com/lists/oss-security/2015/11/30/2 http://www.securityfocus.com/bid/78227 http://www.securitytracker.com/id/1034268 http://xenbits.xen.org/xsa/advisory • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •