CVE-2020-13361
https://notcve.org/view.php?id=CVE-2020-13361
In QEMU 5.0.0 and earlier, es1370_transfer_audio in hw/audio/es1370.c does not properly validate the frame count, which allows guest OS users to trigger an out-of-bounds access during an es1370_write() operation. En QEMU versión 5.0.0 y versiones anteriores, la función es1370_transfer_audio en el archivo hw/audio/es1370.c no comprueba apropiadamente el conteo de tramas, lo que permite a usuarios invitados del Sistema Operativo desencadenar un acceso fuera de límites durante una operación es1370_write(). • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.html http://www.openwall.com/lists/oss-security/2020/05/28/1 https://lists.debian.org/debian-lts-announce/2020/06/msg00032.html https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg03983.html https://security-tracker.debian.org/tracker/CVE-2020-13361 https://security.gentoo.org/glsa/202011-09 https://security.netapp.com/advisory/ntap-202 • CWE-787: Out-of-bounds Write •
CVE-2020-13253
https://notcve.org/view.php?id=CVE-2020-13253
sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash the QEMU process. En la función sd_wp_addr en el archivo hw/sd/sd.c en QEMU versión 4.2.0, utiliza una dirección no comprobada, lo que conlleva a una lectura fuera de límites durante las operaciones sdhci_write(). Un usuario del Sistema Operativo invitado puede bloquear el proceso QEMU. • http://www.openwall.com/lists/oss-security/2020/05/27/2 https://bugzilla.redhat.com/show_bug.cgi?id=1838546 https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html https://security.gentoo.org/glsa/202011-09 https://usn.ubuntu.com/4467-1 • CWE-125: Out-of-bounds Read •
CVE-2020-10717
https://notcve.org/view.php?id=CVE-2020-10717
A potential DoS flaw was found in the virtio-fs shared file system daemon (virtiofsd) implementation of the QEMU version >= v5.0. Virtio-fs is meant to share a host file system directory with a guest via virtio-fs device. If the guest opens the maximum number of file descriptors under the shared directory, a denial of service may occur. This flaw allows a guest user/process to cause this denial of service on the host. Se encontró un fallo potencial de DoS en la implementación del demonio del sistema de archivos compartido virtio-fs (virtiofsd) de QEMU versiones anteriores a la versión v5.0. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10717 https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00141.html https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg00143.html https://security.gentoo.org/glsa/202011-09 https://www.openwall.com/lists/oss-security/2020/05/04/1 • CWE-770: Allocation of Resources Without Limits or Throttling •