CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2020-24352
https://notcve.org/view.php?id=CVE-2020-24352
An issue was discovered in QEMU through 5.1.0. An out-of-bounds memory access was found in the ATI VGA device implementation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati_2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service. Se detectó un problema en QEMU versiones hasta 5.1.0. • https://bugzilla.redhat.com/show_bug.cgi?id=1847584 https://git.qemu.org/?p=qemu.git https://security.netapp.com/advisory/ntap-20201123-0003 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 3.2EPSS: 0%CPEs: 1EXPL: 0CVE-2020-25742
https://notcve.org/view.php?id=CVE-2020-25742
pci_change_irq_level in hw/pci/pci.c in QEMU before 5.1.1 has a NULL pointer dereference because pci_get_bus() might not return a valid pointer. La función pci_change_irq_level en el archivo hw/pci/pci.c en QEMU versiones anteriores a 5.1.1, presenta una desreferencia de puntero NULL porque la función pci_get_bus() podría no devolver un puntero válido • http://www.openwall.com/lists/oss-security/2020/09/29/1 https://bugzilla.redhat.com/show_bug.cgi?id=1883178 https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05294.html https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Flsi_nullptr1 • CWE-476: NULL Pointer Dereference •
CVSS: 3.2EPSS: 0%CPEs: 5EXPL: 0CVE-2020-25743
https://notcve.org/view.php?id=CVE-2020-25743
hw/ide/pci.c in QEMU before 5.1.1 can trigger a NULL pointer dereference because it lacks a pointer check before an ide_cancel_dma_sync call. El archivo hw/ide/pci.c en QEMU versiones anteriores a 5.1.1, puede desencadenar una desreferencia del puntero NULL porque carece de una comprobación de puntero antes de una llamada de ide_cancel_dma_sync • http://www.openwall.com/lists/oss-security/2020/09/29/1 https://bugzilla.redhat.com/show_bug.cgi?id=1881409 https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05967.html https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Fide_nullptr1b • CWE-476: NULL Pointer Dereference •
CVSS: 5.0EPSS: 0%CPEs: 15EXPL: 2CVE-2020-14364 – QEMU: usb: out-of-bounds r/w access issue while processing usb packets
https://notcve.org/view.php?id=CVE-2020-14364
An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before 5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its 'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the privileges of the QEMU process on the host. Se encontró un fallo de acceso de lectura/escritura fuera de límites en el emulador USB de QEMU en versiones anteriores a la 5.2.0. Este problema ocurre mientras se procesan paquetes USB de un invitado cuando USBDevice "setup_len" excede su "data_buf [4096]" en las rutinas do_token_in, do_token_out. • https://github.com/gejian-iscas/CVE-2020-14364 https://github.com/y-f00l/CVE-2020-14364 http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00024.html https://bugzilla.redhat.com/show_bug.cgi?id=1869201 https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JTZQUQ6ZBPMFMNAUQBVJFELYNMUZLL6P https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M52WIRMZL6T • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVSS: 3.8EPSS: 0%CPEs: 5EXPL: 0CVE-2020-12829
https://notcve.org/view.php?id=CVE-2020-12829
In QEMU through 5.0.0, an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A local attacker could abuse this flaw to crash the QEMU process in sm501_2d_operation() in hw/display/sm501.c on the host, resulting in a denial of service. En QEMU versiones hasta 5.0.0, se encontró un desbordamiento de enteros en la implementación del controlador de pantalla SM501. Este fallo ocurre en la macro COPY_AREA al manejar operaciones de escritura MMIO por medio de la devolución de llamada de sm501_2d_engine_write(). • https://bugzilla.redhat.com/show_bug.cgi?id=1808510 https://usn.ubuntu.com/4467-1 https://www.debian.org/security/2020/dsa-4760 • CWE-190: Integer Overflow or Wraparound •