CVSS: 8.4EPSS: 0%CPEs: 35EXPL: 0CVE-2016-2857 – Qemu: net: out of bounds read in net_checksum_calculate()
https://notcve.org/view.php?id=CVE-2016-2857
The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet. La función net_checksum_calculate en net/checksum.c en QEMU permite a usuarios del SO invitado provocar una denegación de servicio (lectura de memoria dinámica fuera de rango y caída) a través de una longitud de la carga útil en un paquete manipulado. An out-of-bounds read-access flaw was found in the QEMU emulator built with IP checksum routines. The flaw could occur when computing a TCP/UDP packet's checksum, because a QEMU function used the packet's payload length without checking against the data buffer's size. A user inside a guest could use this flaw to crash the QEMU process (denial of service). • http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=362786f14a753d8a5256ef97d7c10ed576d6572b http://rhn.redhat.com/errata/RHSA-2016-2670.html http://rhn.redhat.com/errata/RHSA-2016-2671.html http://rhn.redhat.com/errata/RHSA-2016-2704.html http://rhn.redhat.com/errata/RHSA-2016-2705.html http://rhn.redhat.com/errata/RHSA-2016-2706.html http://rhn.redhat.com/errata/RHSA-2017-0083.html http://rhn.redhat.com/errata/RHSA-2017-0309.html http://rhn.redhat.com/errata/RHSA- • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •
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: 7.5EPSS: 82%CPEs: 9EXPL: 1CVE-2015-8080 – redis: Integer wraparound in lua_struct.c causing stack-based buffer overflow
https://notcve.org/view.php?id=CVE-2015-8080
Integer overflow in the getnum function in lua_struct.c in Redis 2.8.x before 2.8.24 and 3.0.x before 3.0.6 allows context-dependent attackers with permission to run Lua code in a Redis session to cause a denial of service (memory corruption and application crash) or possibly bypass intended sandbox restrictions via a large number, which triggers a stack-based buffer overflow. Desbordamiento de entero en la función getnum en lua_struct.c en Redis 2.8.x en versiones anteriores a 2.8.24 y 3.0.x en versiones anteriores a 3.0.6 permite a atacantes dependientes de contexto con permiso para ejecutar código Lua en una sesión Redis provocar una denegación de servicio (corrupción de memoria y caída de la aplicación) o posiblemente eludir restricciones destinadas a la sandbox a través de un número grande, lo que desencadena un desbordamiento de buffer basado en pila. An integer-wraparound flaw leading to a stack-based overflow was found in Redis. A user with access to run Lua code in a Redis session could possibly use this flaw to crash the server (denial of service) or gain code execution outside of the Lua sandbox. • http://lists.opensuse.org/opensuse-updates/2016-05/msg00126.html http://rhn.redhat.com/errata/RHSA-2016-0095.html http://rhn.redhat.com/errata/RHSA-2016-0096.html http://rhn.redhat.com/errata/RHSA-2016-0097.html http://www.debian.org/security/2015/dsa-3412 http://www.openwall.com/lists/oss-security/2015/11/06/2 http://www.openwall.com/lists/oss-security/2015/11/06/4 http://www.securityfocus.com/bid/77507 https://github.com/antirez/redis/issues/2855 https&# • CWE-190: Integer Overflow or Wraparound •
CVSS: 9.0EPSS: 4%CPEs: 14EXPL: 0CVE-2015-7512 – Qemu: net: pcnet: buffer overflow in non-loopback mode
https://notcve.org/view.php?id=CVE-2015-7512
Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet. Desbordamiento de buffer en la función pcnet_receive en hw/net/pcnet.c en QEMU, cuando un NIC invitado tiene un MTU más grande, permite a atacantes provocar una denegación de servicio (caída de SO invitado) o ejecutar código arbitrario a través de un paquete grande. A buffer overflow flaw was found in the way QEMU's AMD PC-Net II emulation validated certain received packets from a remote host in non-loopback mode. A remote, unprivileged attacker could potentially use this flaw to execute arbitrary code on the host with the privileges of the QEMU process. Note that to exploit this flaw, the guest network interface must have a large MTU limit. • http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=8b98a2f07175d46c3f7217639bd5e03f 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/2015/11/30/3 http://www.oracle.com/technetwork/topics/securi • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-122: Heap-based Buffer Overflow •