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CVE-2024-26328

QEMU: NVMe: out-of-bounds memory access in nvme_sriov_pre_write_ctrl()

An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c does not set NumVFs to PCI_SRIOV_TOTAL_VF, and thus interaction with hw/nvme/ctrl.c is mishandled.

CVSS 3.1 · 6 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu
Products
Qemu
CVE-2024-26327

QEMU: SR-IOV: improper validation of NumVFs leads to buffer overflow

An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c mishandles the situation where a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF implementations.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux
CVE-2022-3872

QEMU: sdhci: buffer data port register off-by-one read/write

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.

CVSS 3.1 · 8.6 High EPSS 1.1% KEV · Not listed
Vendors
Qemu
Products
Qemu
CVE-2022-2962

QEMU: tulip: DMA reentrancy issue leads to stack or heap overflow

A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Qemu
Products
Qemu
CVE-2017-5857

Qemu: display: virtio-gpu-3d: host memory leakage in virgl_cmd_resource_unref

Memory leak in the virgl_cmd_resource_unref function in hw/display/virtio-gpu-3d.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_UNREF commands sent without detaching the backing storage beforehand.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu
Products
Qemu
CVE-2014-0146

Qemu: qcow2: NULL dereference in qcow2_open() error path

The qcow2_open function in the (block/qcow2.c) in QEMU before 1.7.2 and 2.x before 2.0.0 allows local users to cause a denial of service (NULL pointer dereference) via a crafted image which causes an error, related to the initialization of the snapshot_offset and nb_snapshots fields.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux Openstack
CVE-2017-5898

Qemu: usb: integer overflow in emulated_apdu_from_guest

Integer overflow in the emulated_apdu_from_guest function in usb/dev-smartcard-reader.c in Quick Emulator (Qemu), when built with the CCID Card device emulator support, allows local users to cause a denial of service (application crash) via a large Application Protocol Data Units (APDU) unit.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat Suse
Products
Qemu Enterprise Linux Linux Enterprise Desktop and 3 more
CVE-2017-5667

Qemu: sd: sdhci OOB access during multi block SDMA transfer

The sdhci_sdma_transfer_multi_blocks function in hw/sd/sdhci.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (out-of-bounds heap access and crash) or execute arbitrary code on the QEMU host via vectors involving the data transfer length.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Qemu
Products
Debian Linux Qemu
CVE-2017-5579

Qemu: serial: host memory leakage 16550A UART emulation

Memory leak in the serial_exit_core function in hw/char/serial.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption and QEMU process crash) via a large number of device unplug operations.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Qemu Redhat
Products
Debian Linux Qemu Enterprise Linux and 1 more
CVE-2017-5856

Qemu: scsi: megasas: host memory leakage in megasas_handle_dcmd

Memory leak in the megasas_handle_dcmd function in hw/scsi/megasas.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) via MegaRAID Firmware Interface (MFI) commands with the sglist size set to a value over 2 Gb.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Qemu
Products
Debian Linux Qemu
CVE-2017-5931

Qemu: virtio: integer overflow in handling virtio-crypto requests

Integer overflow in hw/virtio/virtio-crypto.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code on the host via a crafted virtio-crypto request, which triggers a heap-based buffer overflow.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Qemu
Products
Qemu
CVE-2014-0142

qemu: crash by possible division by zero

QEMU, possibly before 2.0.0, allows local users to cause a denial of service (divide-by-zero error and crash) via a zero value in the (1) tracks field to the seek_to_sector function in block/parallels.c or (2) extent_size field in the bochs function in block/bochs.c.

CVSS 3.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux Openstack
CVE-2017-5525

Qemu: audio: memory leakage in ac97 device

Memory leak in hw/audio/ac97.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption and QEMU process crash) via a large number of device unplug operations.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Qemu
Products
Debian Linux Qemu
CVE-2017-5526

Qemu: audio: memory leakage in es1370 device

Memory leak in hw/audio/es1370.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption and QEMU process crash) via a large number of device unplug operations.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Qemu
Products
Debian Linux Qemu
CVE-2014-0143

Qemu: block: multiple integer overflow flaws

Multiple integer overflows in the block drivers in QEMU, possibly before 2.0.0, allow local users to cause a denial of service (crash) via a crafted catalog size in (1) the parallels_open function in block/parallels.c or (2) bochs_open function in bochs.c, a large L1 table in the (3) qcow2_snapshot_load_tmp in qcow2-snapshot.c or (4) qcow2_grow_l1_table function in qcow2-cluster.c, (5) a large request in the bdrv_check_byte_request function in block.c and other block drivers, (6) crafted cluster indexes in the get_refcount function in qcow2-refcount.c, or (7) a large number of blocks in the cloop_open function in cloop.c, which trigger buffer overflows, memory corruption, large memory allocations and out-of-bounds read and writes.

CVSS 3.0 · 7.0 High EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux Openstack
CVE-2017-17381

Qemu: virtio: divide by zero exception while updating rings

The Virtio Vring implementation in QEMU allows local OS guest users to cause a denial of service (divide-by-zero error and QEMU process crash) by unsetting vring alignment while updating Virtio rings.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Qemu
Products
Debian Linux Qemu
CVE-2014-0145

Qemu: prevent possible buffer overflows

Multiple buffer overflows in QEMU before 1.7.2 and 2.x before 2.0.0, allow local users to cause a denial of service (crash) or possibly execute arbitrary code via a large (1) L1 table in the qcow2_snapshot_load_tmp in the QCOW 2 block driver (block/qcow2-snapshot.c) or (2) uncompressed chunk, (3) chunk length, or (4) number of sectors in the DMG block driver (block/dmg.c).

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Qemu Redhat
Products
Qemu Enterprise Linux Openstack
CVE-2017-5552

Qemu: display: virtio-gpu-3d: memory leakage in virgl_resource_attach_backing

Memory leak in the virgl_resource_attach_backing function in hw/display/virtio-gpu-3d.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING commands.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu
Products
Qemu
CVE-2017-15038

Qemu: 9p: virtfs: information disclosure when reading extended attributes

Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes.

CVSS 3.0 · 5.6 Medium EPSS < 1% KEV · Not listed
Vendors
Qemu
Products
Qemu