CVSS: 7.8EPSS: 22%CPEs: 243EXPL: 0CVE-2010-0741 – qemu: Improper handling of erroneous data provided by Linux virtio-net driver
https://notcve.org/view.php?id=CVE-2010-0741
The virtio_net_bad_features function in hw/virtio-net.c in the virtio-net driver in the Linux kernel before 2.6.26, when used on a guest OS in conjunction with qemu-kvm 0.11.0 or KVM 83, allows remote attackers to cause a denial of service (guest OS crash, and an associated qemu-kvm process exit) by sending a large amount of network traffic to a TCP port on the guest OS, related to a virtio-net whitelist that includes an improper implementation of TCP Segment Offloading (TSO). La funcion virtio_net_bad_features en hw/virtio-net.c en el driver virtio-net en el kernel de Linux anterior a v2.6.26, cuando utiliza un sistema operativo invitado en conjunción con qemu-kvm 0.11.0 o KVM 83, permite a atacantes remotos producir una denegación de servicio (caída del sistema operativo invitado, y una salida del proceso de asociación qemu-kvm) mediante el envío de una gran cantidad de trafico TCP al puerto del sistema operativo invitado, relacionado con la lista blanca de virtio-net que incluye una implementación inadecuada de TCP Segment Offloading (TSO). • http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commit%3Bh=184bd0484533b725194fa517ddc271ffd74da7c9 http://lists.gnu.org/archive/html/qemu-devel/2009-10/msg02480.html http://lists.gnu.org/archive/html/qemu-devel/2009-10/msg02495.html http://openwall.com/lists/oss-security/2010/03/29/4 http://securitytracker.com/id?1023798 http://www.redhat.com/support/errata/RHSA-2010-0271.html http://www.vupen.com/english/advisories/2010/0760 https://bugs.edge.launchpad.net/ubuntu/+s • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 6.9EPSS: 0%CPEs: 1EXPL: 0CVE-2010-0419 – kvm: emulator privilege escalation segment selector check
https://notcve.org/view.php?id=CVE-2010-0419
The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not properly restrict writing of segment selectors to segment registers, which might allow guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch. El emulador x86 en KVM 83, cuando un invitado esta configura para Symmetric Multiprocessing (SMP), no restringe de manera adecuada la escritura de los selectores de segmento en los registros de segmento, lo que permitiría a usuarios del sistema operativo invitado producir una denegación de servicio (caída del sistema operativo invitado) o ganar privilegios en el sistema operativo invitado mediante el bloqueo de acceso a (1) un puerto IO, (2) una región MMIO, y reemplazando una instrucción entre la entrada del emulador y la instrucción. • http://securitytracker.com/id?1023663 http://www.redhat.com/support/errata/RHSA-2010-0126.html http://www.securityfocus.com/bid/38467 https://bugzilla.redhat.com/show_bug.cgi?id=563463 https://exchange.xforce.ibmcloud.com/vulnerabilities/56662 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10139 https://access.redhat.com/security/cve/CVE-2010-0419 • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 6.9EPSS: 0%CPEs: 1EXPL: 0CVE-2010-0306 – kvm: emulator privilege escalation IOPL/CPL level check
https://notcve.org/view.php?id=CVE-2010-0306
The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use the Current Privilege Level (CPL) and I/O Privilege Level (IOPL) to restrict instruction execution, which allows guest OS users to cause a denial of service (guest OS crash) or gain privileges on the guest OS by leveraging access to a (1) IO port or (2) MMIO region, and replacing an instruction in between emulator entry and instruction fetch, a related issue to CVE-2010-0298. El emulador x86 en KVM3, cuando un invitado está configurado para Symmetric Multiprocessing (SMP), no usa Current Privilege Level (CPL) e I/O Privilege Level (IOPL) para restringir las instrucciones de ejecución, lo que permite a usuarios invitados del OS provocar una denegación de servicio (caída o cuelgue del sistema) o elevar sus privilegios aprovechando el acceso al (1) puerto IO o (2) a la región MMIO, y sustituyendo una instrucción entre la entrada del emulador y el analizador de instrucciones. Cuestión relacionada con CVE-2010-0298. • http://secunia.com/advisories/38492 http://secunia.com/advisories/38499 http://www.debian.org/security/2010/dsa-1996 http://www.securityfocus.com/bid/38158 https://bugzilla.redhat.com/show_bug.cgi?id=560654 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10953 https://rhn.redhat.com/errata/RHSA-2010-0088.html https://rhn.redhat.com/errata/RHSA-2010-0095.html https://access.redhat.com/security/cve/CVE-2010-0306 • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 7.2EPSS: 0%CPEs: 8EXPL: 0CVE-2008-4539
https://notcve.org/view.php?id=CVE-2008-4539
Heap-based buffer overflow in the Cirrus VGA implementation in (1) KVM before kvm-82 and (2) QEMU on Debian GNU/Linux and Ubuntu might allow local users to gain privileges by using the VNC console for a connection, aka the LGD-54XX "bitblt" heap overflow. NOTE: this issue exists because of an incorrect fix for CVE-2007-1320. Desbordamiento de búfer basado en montículo en la implementación Cirrus VGA en (1) KVM anterior a kvm-82 y (2) QEMU sobre Debian GNU/Linux y Ubuntu, podría permitir a usuarios locales obtener privilegios mediante el uso de la consola VNC para realizar una conexión, también conocido como el desbordamiento LGD-54XX "bitblt". NOTA: esta cuestión existe por una incorrecta corrección del CVE-2007-1320. • http://git.kernel.dk/?p=qemu.git%3Ba=commitdiff%3Bh=65d35a09979e63541afc5bfc595b9f1b1b4ae069 http://groups.google.com/group/linux.debian.changes.devel/msg/9e0dc008572f2867?dmode=source http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html http://secunia.com/advisories/25073 http://secunia.com/advisories/29129 http://secunia.com/advisories/33350 http://secunia.com/advisories/34642 http://secunia.com/advisories/35031 http://secunia.com/advisories/35062 http://svn.savannah.gnu. • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 5.0EPSS: 8%CPEs: 108EXPL: 3CVE-2008-2382 – QEMU 0.9 / KVM 36/79 - VNC Server Remote Denial of Service
https://notcve.org/view.php?id=CVE-2008-2382
The protocol_client_msg function in vnc.c in the VNC server in (1) Qemu 0.9.1 and earlier and (2) KVM kvm-79 and earlier allows remote attackers to cause a denial of service (infinite loop) via a certain message. La función protocol_client_msg en vnc.c en el servidor VNC en (1) Qemu 0.9.1 y anteriores y (2) KVM kvm-79 y anteriores permite a atacantes remotos provocar una denegación de servicio (bucle infinito) mediante un cierto mensaje. • https://www.exploit-db.com/exploits/32675 http://lists.opensuse.org/opensuse-security-announce/2009-01/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html http://secunia.com/advisories/33293 http://secunia.com/advisories/33303 http://secunia.com/advisories/33350 http://secunia.com/advisories/33568 http://secunia.com/advisories/34642 http://secunia.com/advisories/35062 http://securityreason.com/securityalert/4803 http://securitytracker.com/id?1021488 • CWE-399: Resource Management Errors •