CVSS: 5.6EPSS: 0%CPEs: 3EXPL: 0CVE-2023-3301 – Triggerable assertion due to race condition in hot-unplug
https://notcve.org/view.php?id=CVE-2023-3301
01 Aug 2023 — A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service. Se encontró una falla en QEMU. La naturaleza asíncrona de la desconexión en caliente permite un escenario de ejecución en el que el backend del dispositivo de red se borra antes de que se haya desconectado el frontend pci de virtio-net.... • https://access.redhat.com/security/cve/CVE-2023-3301 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-617: Reachable Assertion •
CVSS: 6.8EPSS: 0%CPEs: 4EXPL: 0CVE-2023-3255 – Qemu: vnc: infinite loop in inflate_buffer() leads to denial of service
https://notcve.org/view.php?id=CVE-2023-3255
01 Aug 2023 — A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service. Se encontró una falla en el servidor VNC integrado de QEMU al procesar mensajes ClientCutText. Una condición de salida incorrecta puede provocar un bucle inf... • https://access.redhat.com/errata/RHSA-2024:2135 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 0CVE-2023-3019 – Qemu: e1000e: heap use-after-free in e1000e_write_packet_to_guest()
https://notcve.org/view.php?id=CVE-2023-3019
24 Jul 2023 — A DMA reentrancy issue leading to a use-after-free error was found in the e1000e NIC emulation code in QEMU. This issue could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. This update for qemu fixes the following issues. Fixed heap use-after-free in e1000e_write_packet_to_guest. Fixed NULL pointer dereference in qemu_clipboard_request. • https://access.redhat.com/errata/RHSA-2024:0135 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0CVE-2023-3354 – Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service
https://notcve.org/view.php?id=CVE-2023-3354
11 Jul 2023 — A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service. This update for qemu fixes the following issues. • https://access.redhat.com/security/cve/CVE-2023-3354 • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 6EXPL: 0CVE-2023-0664
https://notcve.org/view.php?id=CVE-2023-0664
29 Mar 2023 — A flaw was found in the QEMU Guest Agent service for Windows. A local unprivileged user may be able to manipulate the QEMU Guest Agent's Windows installer via repair custom actions to elevate their privileges on the system. • https://bugzilla.redhat.com/show_bug.cgi?id=2167423 • CWE-250: Execution with Unnecessary Privileges CWE-269: Improper Privilege Management •
CVSS: 6.3EPSS: 0%CPEs: 2EXPL: 0CVE-2023-1544 – Qemu: pvrdma: out-of-bounds read in pvrdma_ring_next_elem_read()
https://notcve.org/view.php?id=CVE-2023-1544
23 Mar 2023 — A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to allocate and initialize a huge number of page tables to be used as a ring of descriptors for CQ and async events, potentially leading to an out-of-bounds read and crash of QEMU. Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the USB xHCI controller device. A privileged guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of servi... • https://access.redhat.com/security/cve/CVE-2023-1544 • CWE-125: Out-of-bounds Read CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 6.0EPSS: 0%CPEs: 8EXPL: 0CVE-2023-0330 – Qemu: lsi53c895a: dma reentrancy issue leads to stack overflow
https://notcve.org/view.php?id=CVE-2023-0330
06 Mar 2023 — A vulnerability in the lsi53c895a device affects the latest version of qemu. A DMA-MMIO reentrancy problem may lead to memory corruption bugs like stack overflow or use-after-free. This update for qemu fixes the following issues. Fixed a memory leak due to a missing virtqueue detach on error. Fixed an use-after-free in nvme DMA reentrancy issue. • https://access.redhat.com/security/cve/CVE-2023-0330 • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 0CVE-2022-4144 – QEMU: QXL: qxl_phys2virt unsafe address translation can lead to out-of-bounds read
https://notcve.org/view.php?id=CVE-2022-4144
29 Nov 2022 — An out-of-bounds read flaw was found in the QXL display device emulation in QEMU. The qxl_phys2virt() function does not check the size of the structure pointed to by the guest physical address, potentially reading past the end of the bar space into adjacent pages. A malicious guest user could use this flaw to crash the QEMU process on the host causing a denial of service condition. Se encontró una falla de lectura fuera de los límites en la emulación del dispositivo de visualización QXL en QEMU. La función ... • https://bugzilla.redhat.com/show_bug.cgi?id=2148506 • CWE-125: Out-of-bounds Read •
CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 1CVE-2022-4172 – QEMU: ACPI ERST: memory corruption issues in read_erst_record and write_erst_record
https://notcve.org/view.php?id=CVE-2022-4172
29 Nov 2022 — An integer overflow and buffer overflow issues were found in the ACPI Error Record Serialization Table (ERST) device of QEMU in the read_erst_record() and write_erst_record() functions. Both issues may allow the guest to overrun the host buffer allocated for the ERST memory device. A malicious guest could use these flaws to crash the QEMU process on the host. Se encontraron problemas de desbordamiento de enteros y desbordamiento de búfer en el dispositivo ACPI Error Record Serialization Table (ERST) de QEMU... • https://gitlab.com/qemu-project/qemu/-/commit/defb7098 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-190: Integer Overflow or Wraparound •
CVSS: 8.6EPSS: 0%CPEs: 7EXPL: 0CVE-2022-3872
https://notcve.org/view.php?id=CVE-2022-3872
07 Nov 2022 — An off-by-one read/write issue was found in the SDHCI device of QEMU. It occurs when reading/writing the Buffer Data Port Register in sdhci_read_dataport and sdhci_write_dataport, respectively, if data_count == block_size. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. Se encontró un problema de lectura/escritura de uno en uno en el dispositivo SDHCI de QEMU. Ocurre al leer/escribir el registro del Puerto de Datos del Búfer en sdhci_r... • https://lists.nongnu.org/archive/html/qemu-devel/2022-11/msg01068.html • CWE-193: Off-by-one Error •