CVSS: 3.2EPSS: 0%CPEs: 4EXPL: 1CVE-2021-20203 – Ubuntu Security Notice USN-5307-1
https://notcve.org/view.php?id=CVE-2021-20203
25 Feb 2021 — An integer overflow issue was found in the vmxnet3 NIC emulator of the QEMU for versions up to v5.2.0. It may occur if a guest was to supply invalid values for rx/tx queue size or other NIC parameters. A privileged guest user may use this flaw to crash the QEMU process on the host resulting in DoS scenario. Se encontró un problema de desbordamiento de enteros en el emulador de NIC vmxnet3 de QEMU para versiones hasta v5.2.0. Puede ocurrir si un invitado estaba suministrando valores no válidos para el t... • https://bugs.launchpad.net/qemu/+bug/1913873 • CWE-190: Integer Overflow or Wraparound •
CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-20181 – QEMU Plan 9 File System Time-Of-Check Time-Of-Use Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-20181
08 Feb 2021 — A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability. Se encontró un fallo de condición de carrera en la implementación del servidor 9pfs de QEMU versiones hasta 5.2.0 incluyéndola. Este fallo permite a un cliente 9p malicios... • https://bugzilla.redhat.com/show_bug.cgi?id=1927007 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •
CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0CVE-2019-20808
https://notcve.org/view.php?id=CVE-2019-20808
31 Dec 2020 — In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation. It occurs in the ati_cursor_define() routine while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service. En QEMU versión 4.1.0, se encontró un fallo de lectura fuera de límites en la implementación VGA de ATI. Ocurre en la rutina ati_cursor_define() mientras maneja las operaciones de escritura MMIO mediante ... • https://bugzilla.redhat.com/show_bug.cgi?id=1841136 • CWE-125: Out-of-bounds Read •
CVSS: 3.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-11947 – QEMU: heap buffer overflow in iscsi_aio_ioctl_cb() in block/iscsi.c may lead to information disclosure
https://notcve.org/view.php?id=CVE-2020-11947
31 Dec 2020 — iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker. La función iscsi_aio_ioctl_cb en el archivo block/iscsi.c en QEMU 4.1.0, presenta una lectura excesiva del búfer en la región heap de la memoria que puede revelar información no relacionada de la memoria del proceso a un atacante. A heap buffer overflow flaw was found in the iSCSI support of QEMU. This flaw could lead to an out-of-bounds read access ... • http://www.openwall.com/lists/oss-security/2021/01/13/4 • CWE-122: Heap-based Buffer Overflow CWE-125: Out-of-bounds Read •
CVSS: 6.0EPSS: 0%CPEs: 2EXPL: 0CVE-2020-27821 – QEMU: heap buffer overflow in msix_table_mmio_write() in hw/pci/msix.c
https://notcve.org/view.php?id=CVE-2020-27821
08 Dec 2020 — A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0. Se encontró uno fallo en la API de administración de memoria de QEMU durante la inicialización de una caché de región de memoria. • http://www.openwall.com/lists/oss-security/2020/12/16/6 • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 3.2EPSS: 0%CPEs: 2EXPL: 0CVE-2020-25723 – QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-ehci.c
https://notcve.org/view.php?id=CVE-2020-25723
30 Nov 2020 — A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service. Se encontró un problema de aserción alcanzable en el código de emulación USB EHCI de QEMU. Podría ocurrir mientras se procesan las peticiones USB debido a una falta de... • http://www.openwall.com/lists/oss-security/2020/12/22/1 • CWE-617: Reachable Assertion •
CVSS: 6.3EPSS: 0%CPEs: 2EXPL: 0CVE-2020-17380 – Ubuntu Security Notice USN-4650-1
https://notcve.org/view.php?id=CVE-2020-17380
30 Nov 2020 — A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer via the sdhci_sdma_transfer_multi_blocks() routine in hw/sd/sdhci.c. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the QEMU process on the host. Se encontró un desbordamiento del búfer en la región heap de la memoria en... • http://www.openwall.com/lists/oss-security/2021/03/09/1 • CWE-787: Out-of-bounds Write •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2020-24352
https://notcve.org/view.php?id=CVE-2020-24352
16 Oct 2020 — 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 • 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
06 Oct 2020 — 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 • CWE-476: NULL Pointer Dereference •
CVSS: 3.2EPSS: 0%CPEs: 5EXPL: 0CVE-2020-25743
https://notcve.org/view.php?id=CVE-2020-25743
06 Oct 2020 — 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 • CWE-476: NULL Pointer Dereference •