Vulnerabilities (CVE)

Filtered by vendor Qemu Subscribe
Total 419 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2016-4037 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2023-02-12 4.9 MEDIUM 6.0 MEDIUM
The ehci_advance_state function in hw/usb/hcd-ehci.c in QEMU allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via a circular split isochronous transfer descriptor (siTD) list, a related issue to CVE-2015-8558.
CVE-2016-3712 6 Canonical, Citrix, Debian and 3 more 11 Ubuntu Linux, Xenserver, Debian Linux and 8 more 2023-02-12 2.1 LOW 5.5 MEDIUM
Integer overflow in the VGA module in QEMU allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) by editing VGA registers in VBE mode.
CVE-2016-2858 3 Canonical, Debian, Qemu 3 Ubuntu Linux, Debian Linux, Qemu 2023-02-12 1.9 LOW 6.5 MEDIUM
QEMU, when built with the Pseudo Random Number Generator (PRNG) back-end support, allows local guest OS users to cause a denial of service (process crash) via an entropy request, which triggers arbitrary stack based allocation and memory corruption.
CVE-2016-1714 3 Oracle, Qemu, Redhat 3 Linux, Qemu, Openstack 2023-02-12 6.9 MEDIUM 8.1 HIGH
The (1) fw_cfg_write and (2) fw_cfg_read functions in hw/nvram/fw_cfg.c in QEMU before 2.4, when built with the Firmware Configuration device emulation support, allow guest OS users with the CAP_SYS_RAWIO privilege to cause a denial of service (out-of-bounds read or write access and process crash) or possibly execute arbitrary code via an invalid current entry value in a firmware configuration.
CVE-2016-2841 2 Canonical, Qemu 2 Ubuntu Linux, Qemu 2023-02-12 2.1 LOW 6.0 MEDIUM
The ne2000_receive function in the NE2000 NIC emulation support (hw/net/ne2000.c) in QEMU before 2.5.1 allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via crafted values for the PSTART and PSTOP registers, involving ring buffer control.
CVE-2016-1981 2 Debian, Qemu 2 Debian Linux, Qemu 2023-02-12 2.1 LOW 5.5 MEDIUM
QEMU (aka Quick Emulator) built with the e1000 NIC emulation support is vulnerable to an infinite loop issue. It could occur while processing data via transmit or receive descriptors, provided the initial receive/transmit descriptor head (TDH/RDH) is set outside the allocated descriptor buffer. A privileged user inside guest could use this flaw to crash the QEMU instance resulting in DoS.
CVE-2016-2857 4 Canonical, Debian, Qemu and 1 more 12 Ubuntu Linux, Debian Linux, Qemu and 9 more 2023-02-12 3.6 LOW 8.4 HIGH
The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.
CVE-2016-2538 1 Qemu 1 Qemu 2023-02-12 3.6 LOW 7.1 HIGH
Multiple integer overflows in the USB Net device emulator (hw/usb/dev-network.c) in QEMU before 2.5.1 allow local guest OS administrators to cause a denial of service (QEMU process crash) or obtain sensitive host memory information via a remote NDIS control message packet that is mishandled in the (1) rndis_query_response, (2) rndis_set_response, or (3) usb_net_handle_dataout function.
CVE-2016-1568 3 Debian, Qemu, Redhat 5 Debian Linux, Qemu, Enterprise Linux and 2 more 2023-02-12 6.9 MEDIUM 8.8 HIGH
Use-after-free vulnerability in hw/ide/ahci.c in QEMU, when built with IDE AHCI Emulation support, allows guest OS users to cause a denial of service (instance crash) or possibly execute arbitrary code via an invalid AHCI Native Command Queuing (NCQ) AIO command.
CVE-2016-10028 1 Qemu 1 Qemu 2023-02-12 2.1 LOW 5.5 MEDIUM
The virgl_cmd_get_capset function in hw/display/virtio-gpu-3d.c in QEMU (aka Quick Emulator) built with Virtio GPU Device emulator support allows local guest OS users to cause a denial of service (out-of-bounds read and process crash) via a VIRTIO_GPU_CMD_GET_CAPSET command with a maximum capabilities size with a value of 0.
CVE-2015-8558 2 Debian, Qemu 2 Debian Linux, Qemu 2023-02-12 4.9 MEDIUM 5.5 MEDIUM
The ehci_process_itd function in hw/usb/hcd-ehci.c in QEMU allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via a circular isochronous transfer descriptor (iTD) list.
CVE-2015-8818 1 Qemu 1 Qemu 2023-02-12 2.1 LOW 5.5 MEDIUM
The cpu_physical_memory_write_rom_internal function in exec.c in QEMU (aka Quick Emulator) does not properly skip MMIO regions, which allows local privileged guest users to cause a denial of service (guest crash) via unspecified vectors.
CVE-2015-8817 1 Qemu 1 Qemu 2023-02-12 2.1 LOW 5.5 MEDIUM
QEMU (aka Quick Emulator) built to use 'address_space_translate' to map an address to a MemoryRegionSection is vulnerable to an OOB r/w access issue. It could occur while doing pci_dma_read/write calls. Affects QEMU versions >= 1.6.0 and <= 2.3.1. A privileged user inside guest could use this flaw to crash the guest instance resulting in DoS.
CVE-2015-8666 2 Debian, Qemu 2 Debian Linux, Qemu 2023-02-12 3.3 LOW 7.9 HIGH
Heap-based buffer overflow in QEMU, when built with the Q35-chipset-based PC system emulator.
CVE-2022-0216 2 Fedoraproject, Qemu 2 Fedora, Qemu 2023-02-12 N/A 4.4 MEDIUM
A use-after-free vulnerability was found in the LSI53C895A SCSI Host Bus Adapter emulation of QEMU. The flaw occurs while processing repeated messages to cancel the current SCSI request via the lsi_do_msgout function. This flaw allows a malicious privileged user within the guest to crash the QEMU process on the host, resulting in a denial of service.
CVE-2021-20196 2 Debian, Qemu 2 Debian Linux, Qemu 2023-02-12 2.1 LOW 6.5 MEDIUM
A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
CVE-2022-26354 2 Debian, Qemu 2 Debian Linux, Qemu 2023-02-12 2.1 LOW 3.2 LOW
A flaw was found in the vhost-vsock device of QEMU. In case of error, an invalid element was not detached from the virtqueue before freeing its memory, leading to memory leakage and other unexpected results. Affected QEMU versions <= 6.2.0.
CVE-2022-26353 2 Debian, Qemu 2 Debian Linux, Qemu 2023-02-12 5.0 MEDIUM 7.5 HIGH
A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. Affected QEMU version: 6.2.0.
CVE-2021-20257 4 Debian, Fedoraproject, Qemu and 1 more 8 Debian Linux, Fedora, Qemu and 5 more 2023-02-12 2.1 LOW 6.5 MEDIUM
An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
CVE-2021-3748 5 Canonical, Debian, Fedoraproject and 2 more 6 Ubuntu Linux, Debian Linux, Fedora and 3 more 2023-01-03 6.9 MEDIUM 7.5 HIGH
A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to num_buffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting in a denial of service condition, or potentially execute code on the host with the privileges of the QEMU process.