CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 3CVE-2013-2016
https://notcve.org/view.php?id=CVE-2013-2016
A flaw was found in the way qemu v1.3.0 and later (virtio-rng) validates addresses when guest accesses the config space of a virtio device. If the virtio device has zero/small sized config space, such as virtio-rng, a privileged guest user could use this flaw to access the matching host's qemu address space and thus increase their privileges on the host. Se encontró un fallo en la manera en que qemu versión v1.3.0 y posteriores (virtio-rng) comprueba las direcciones cuando el invitado accede al espacio de configuración de un dispositivo virtio. Si el dispositivo virtio posee un espacio de configuración de tamaño cero o pequeño, ta y como virtio-rng, un usuario invitado privilegiado podría usar este fallo para acceder al espacio de direcciones qemu del host correspondiente y así aumentar sus privilegios en el host. • http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00002.html http://www.openwall.com/lists/oss-security/2013/04/29/5 http://www.openwall.com/lists/oss-security/2013/04/29/6 http://www.securityfocus.com/bid/59541 https://access.redhat.com/security/cve/cve-2013-2016 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-2016 https://exchange.xforce.ibmcloud.com/vulnerabilities/83850 https://github.com/qemu/qemu/commit/5f5a1318653c08e435cfa52f60b6a712815b659d https://securi • CWE-269: Improper Privilege Management •
CVSS: 3.8EPSS: 0%CPEs: 15EXPL: 0CVE-2019-12068
https://notcve.org/view.php?id=CVE-2019-12068
In QEMU 1:4.1-1, 1:2.1+dfsg-12+deb8u6, 1:2.8+dfsg-6+deb9u8, 1:3.1+dfsg-8~deb10u1, 1:3.1+dfsg-8+deb10u2, and 1:2.1+dfsg-12+deb8u12 (fixed), when executing script in lsi_execute_script(), the LSI scsi adapter emulator advances 's->dsp' index to read next opcode. This can lead to an infinite loop if the next opcode is empty. Move the existing loop exit after 10k iterations so that it covers no-op opcodes as well. En QEMU versiones 1:4.1-1, 1:2.1+dfsg-12+deb8u6, 1:2.8+dfsg-6+deb9u8, 1:3.1+dfsg-8~deb10u1, 1:3.1+dfsg-8+deb10u2, y 1:2.1+dfsg-12+deb8u12 (corregida), cuando se ejecuta el script en la función lsi_execute_script(), el emulador del adaptador scsi de LSI avanza el índice "s-)dsp" para leer el próximo opcode. Esto puede conllevar a un bucle infinito si el siguiente opcode está vacío. • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00038.html https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=de594e47659029316bbf9391efb79da0a1a08e08 https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01518.html https://security-tracker.debian.org/tracker/CVE-2019-12068 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 7.5EPSS: 1%CPEs: 2EXPL: 0CVE-2019-15890 – QEMU: Slirp: use-after-free during packet reassembly
https://notcve.org/view.php?id=CVE-2019-15890
libslirp 4.0.0, as used in QEMU 4.1.0, has a use-after-free in ip_reass in ip_input.c. libslirp versión 4.0.0, como es usado en QEMU versión 4.1.0, presenta un uso de la memoria previamente liberada en la función ip_reass en el archivo ip_input.c. A use-after-free issue was found in the SLiRP networking implementation of the QEMU emulator. The issue occurs in ip_reass() routine while reassembling incoming packets, if the first fragment is bigger than the m->m_dat[] buffer. A user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service. • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00034.html http://www.openwall.com/lists/oss-security/2019/09/06/3 https://access.redhat.com/errata/RHSA-2020:0775 https://gitlab.freedesktop.org/slirp/libslirp/commit/c5927943 https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html https://seclists.org/bugtraq/2020/Feb/0 https://usn.ubuntu.com/4191-1 https://usn.ubuntu.com/4191-2 https://www.debian.org/security/2020/dsa-4616 https://ac • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 12EXPL: 0CVE-2019-13164
https://notcve.org/view.php?id=CVE-2019-13164
qemu-bridge-helper.c in QEMU 3.1 and 4.0.0 does not ensure that a network interface name (obtained from bridge.conf or a --br=bridge option) is limited to the IFNAMSIZ size, which can lead to an ACL bypass. qemu-bridge-helper.c en QEMU versión 3.1 y 4.0.0 no garantiza que un nombre de interfaz de red (obtenido de bridge.conf o una opción --br = bridge) esté limitado al tamaño de IFNAMSIZ, lo que puede llevar a una derivación de ACL. • http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00008.html http://www.openwall.com/lists/oss-security/2019/07/02/2 http://www.securityfocus.com/bid/109054 https://github.com/qemu/qemu/commit/03d7712b4bcd47bfe0fe14ba2fffa87e111fa086 https://lists.debian.org/debian-lts-announce/2019/09/msg00021.html https://lists.gnu.org/archive/html/qemu-devel/2019-07/msg00145.html https://seclists.org/bugtraq/2019/Au •
CVSS: 10.0EPSS: 0%CPEs: 1EXPL: 1CVE-2019-12929
https://notcve.org/view.php?id=CVE-2019-12929
The QMP guest_exec command in QEMU 4.0.0 and earlier is prone to OS command injection, which allows the attacker to achieve code execution, denial of service, or information disclosure by sending a crafted QMP command to the listening server. Note: This has been disputed as a non-issue since QEMU's -qmp interface is meant to be used by trusted users. If one is able to access this interface via a tcp socket open to the internet, then it is an insecure configuration issue **EN DISPUTA** El comando QMP guest_exec en QEMU versión 4.0.0 y anteriores es propenso a la inyección de comandos del sistema operativo, lo que permite al atacante remoto lograr la ejecución de código, una denegación de servicio, o la divulgación de información mediante el envío de un comando QMP manipulado al servidor de escucha. Nota: Está siendo discutida por no ser un problema ya que la interfaz -qmp de QEMU está destinada a ser utilizada por usuarios de confianza. Si uno puede acceder a esta interfaz a través de un socket TCP abierto a Internet, entonces es un problema de configuración inseguro. • https://fakhrizulkifli.github.io/posts/2019/06/06/CVE-2019-12929 • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE-668: Exposure of Resource to Wrong Sphere •