CVSS: 7.2EPSS: 0%CPEs: 4EXPL: 0CVE-2015-5166
https://notcve.org/view.php?id=CVE-2015-5166
Use-after-free vulnerability in QEMU in Xen 4.5.x and earlier does not completely unplug emulated block devices, which allows local HVM guest users to gain privileges by unplugging a block device twice. Vulnerabilidad de uso después de liberación en la memoria en QEMU en Xen 4.5.x y versiones anteriores, no desconecta completamente los dispositivos de bloque emulados, lo que permite a usuarios invitados HVM locales obtener privilegios desconectando un dispositivo de bloque dos veces. • http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.html http://www.securityfocus.com/bid/76152 http://www.securitytracker.com/id/1033175 http://xenbits.xen.org/xsa/advisory-139.html • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 9.3EPSS: 0%CPEs: 65EXPL: 0CVE-2015-5165 – Qemu: rtl8139 uninitialized heap memory information leakage to guest (XSA-140)
https://notcve.org/view.php?id=CVE-2015-5165
The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used in Xen 4.5.x and earlier, allows remote attackers to read process heap memory via unspecified vectors. Vulnerabilidad en la emulación de modo offload C+ en el modelo de tarjeta de red del dispositivo RTL8139 en QEMU, tal y como se utiliza en Xen 4.5.x y versiones anteriores, permite a atacantes remotos leer la memoria dinámica del proceso a través de vectores no especificados. An information leak flaw was found in the way QEMU's RTL8139 emulation implementation processed network packets under RTL8139 controller's C+ mode of operation. An unprivileged guest user could use this flaw to read up to 65 KB of uninitialized QEMU heap memory. • http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165373.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167792.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/167820.html http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00027.html http://rhn.redhat.com/errata/RHSA-2015-1674.html http://rhn.redhat.com/errata/RHSA-2015-1683.html http: • CWE-456: Missing Initialization of a Variable CWE-908: Use of Uninitialized Resource •
CVSS: 7.2EPSS: 0%CPEs: 13EXPL: 0CVE-2015-5154 – qemu: ide: atapi: heap overflow during I/O buffer memory access
https://notcve.org/view.php?id=CVE-2015-5154
Heap-based buffer overflow in the IDE subsystem in QEMU, as used in Xen 4.5.x and earlier, when the container has a CDROM drive enabled, allows local guest users to execute arbitrary code on the host via unspecified ATAPI commands. Desbordamiento del buffer basado en memoria dinámica en el subsistema IDE en QEMU, usado en Xen 4.5.x y versiones anteriores, cuando el contenedor tiene una unidad CDROM habilitada, permite a usuarios invitados locales ejecutar código arbitrario en el host a través de comandos ATAPI no especificados. A heap buffer overflow flaw was found in the way QEMU's IDE subsystem handled I/O buffer access while processing certain ATAPI commands. A privileged guest user in a guest with the CDROM drive enabled could potentially use this flaw to execute arbitrary code on the host with the privileges of the host's QEMU process corresponding to the guest. • http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163472.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163658.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163681.html http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00041.html http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00042.html http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00017.html http://lists.opensuse.org/opensuse-security-annou • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 1.9EPSS: 0%CPEs: 4EXPL: 0CVE-2015-2152
https://notcve.org/view.php?id=CVE-2015-2152
Xen 4.5.x and earlier enables certain default backends when emulating a VGA device for an x86 HVM guest qemu even when the configuration disables them, which allows local guest users to obtain access to the VGA console by (1) setting the DISPLAY environment variable, when compiled with SDL support, or connecting to the VNC server on (2) ::1 or (3) 127.0.0.1, when not compiled with SDL support. Xen 4.5.x y anteriores capacita a ciertos backends por defecto cuando emula un dispositivo VGA para una gemu invitado de x86 HVM incluso cuando la configuración las descapacite, lo que permite a usuarios locales invitados obtener acceso a la consola VGA mediante (1) la configuración de la variable de entorno DISPLAY, cuando esté compilada con el soporte SDL, o la conexión al servidor VNC server en (2) ::1 o (3) 127.0.0.1, cuando no esté compilado con el soporte SDL. • http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00014.html http://www.securityfocus.com/bid/73068 http://www.securitytracker.com/id/1031806 http://www.securitytracker.com/id/1031919 http://xenbits.xen.org/xsa/advisory-119.html https://security& • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 4.7EPSS: 0%CPEs: 3EXPL: 0CVE-2014-9066
https://notcve.org/view.php?id=CVE-2014-9066
Xen 4.4.x and earlier, when using a large number of VCPUs, does not properly handle read and write locks, which allows local x86 guest users to cause a denial of service (write denial or NMI watchdog timeout and host crash) via a large number of read requests, a different vulnerability than CVE-2014-9065. Xen 4.4.x y versiones anteriores, cuando utiliza un gran número de VCPUs, no maneja adecuadamente los bloqueos de lectura y escritura, lo que permite a usuarios invitados x86 locales causar una denegación de servicio (denegación de escritura o tiempo de espera agotado del watchdog NMI y caida de host) a través de un gran número de peticiones de lectura, una vulnerabilidad diferente a CVE-2014-9065. • http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html http://www.openwall.com/lists/oss-security/2014/12/08/4 http://www.securityfocus.com/bid/71546 http://xenbits.xen.org/xsa/advisory-114.html https://security.gentoo.org/glsa/201504-04 • CWE-17: DEPRECATED: Code •