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Qemu : Security Vulnerabilities (CVSS score between 4 and 4.99)

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2021-3713 787 Exec Code 2021-08-25 2021-10-18
4.6
None Local Low Not required Partial Partial Partial
An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions prior to 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-bounds access to the UASDevice->data3 and UASDevice->status3 fields. A malicious guest user could use this flaw to crash QEMU or potentially achieve code execution with the privileges of the QEMU process on the host.
2 CVE-2021-3546 787 DoS Exec Code 2021-06-02 2021-11-06
4.6
None Local Low Not required Partial Partial Partial
An out-of-bounds write vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions up to and including 6.0. The flaw occurs while processing the 'VIRTIO_GPU_CMD_GET_CAPSET' command from the guest. It could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service condition, or potential code execution with the privileges of the QEMU process.
3 CVE-2021-3409 119 DoS Exec Code Overflow 2021-03-23 2021-04-11
4.6
None Local Low Not required Partial Partial Partial
The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this.
4 CVE-2020-35517 269 2021-01-28 2021-07-08
4.6
None Local Low Not required Partial Partial Partial
A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices.
5 CVE-2020-35506 416 DoS Exec Code 2021-05-28 2021-07-13
4.6
None Local Low Not required Partial Partial Partial
A use-after-free vulnerability was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0 during the handling of the 'Information Transfer' command (CMD_TI). This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service or potential code execution with the privileges of the QEMU process.
6 CVE-2020-27617 617 2020-11-06 2020-12-02
4.0
None Remote Low ??? None None Partial
eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol.
7 CVE-2020-27616 682 2020-11-06 2020-12-02
4.0
None Remote Low ??? None None Partial
ati_2d_blt in hw/display/ati_2d.c in QEMU 4.2.1 can encounter an outside-limits situation in a calculation. A guest can crash the QEMU process.
8 CVE-2020-25625 835 2020-09-25 2020-11-29
4.7
None Local Medium Not required None None Complete
hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.
9 CVE-2020-25624 125 2020-11-30 2020-12-10
4.4
None Local Medium Not required Partial Partial Partial
hw/usb/hcd-ohci.c in QEMU 5.0.0 has a stack-based buffer over-read via values obtained from the host controller driver.
10 CVE-2020-25085 787 Overflow 2020-09-25 2021-03-15
4.4
None Local Medium Not required Partial Partial Partial
QEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c mishandles a write operation in the SDHC_BLKSIZE case.
11 CVE-2020-17380 787 DoS Exec Code Overflow 2021-01-30 2021-04-11
4.6
None Local Low Not required Partial Partial Partial
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.
12 CVE-2020-15863 787 DoS Exec Code Overflow 2020-07-28 2021-01-04
4.4
None Local Medium Not required Partial Partial Partial
hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555.
13 CVE-2020-14364 125 DoS Exec Code 2020-08-31 2020-11-11
4.4
None Local Medium Not required Partial Partial Partial
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.
14 CVE-2020-13800 835 2020-06-04 2021-07-21
4.9
None Local Low Not required None None Complete
ati-vga in hw/display/ati.c in QEMU 4.2.0 allows guest OS users to trigger infinite recursion via a crafted mm_index value during an ati_mm_read or ati_mm_write call.
15 CVE-2020-13754 119 Overflow 2020-06-02 2020-12-14
4.6
None Local Low Not required Partial Partial Partial
hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.
16 CVE-2020-10761 617 DoS 2020-06-09 2020-11-11
4.0
None Remote Low ??? None None Partial
An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the qemu-nbd server resulting in a denial of service.
17 CVE-2019-15034 120 Overflow 2020-03-10 2020-05-28
4.4
None Local Medium Not required Partial Partial Partial
hw/display/bochs-display.c in QEMU 4.0.0 does not ensure a sufficient PCI config space allocation, leading to a buffer overflow involving the PCIe extended config space.
18 CVE-2019-13164 Bypass 2019-07-03 2021-01-04
4.6
None Local Low Not required Partial Partial Partial
qemu-bridge-helper.c in QEMU 3.1 and 4.0.0 does not ensure that a network interface name (obtained from bridge.conf or a --br=bridge option) is limited to the IFNAMSIZ size, which can lead to an ACL bypass.
19 CVE-2019-6778 787 Overflow 2019-03-21 2020-08-24
4.6
None Local Low Not required Partial Partial Partial
In QEMU 3.0.0, tcp_emu in slirp/tcp_subr.c has a heap-based buffer overflow.
20 CVE-2018-16867 362 Exec Code 2018-12-12 2020-05-14
4.4
None Local Medium Not required Partial Partial Partial
A flaw was found in qemu Media Transfer Protocol (MTP) before version 3.1.0. A path traversal in the in usb_mtp_write_data function in hw/usb/dev-mtp.c due to an improper filename sanitization. When the guest device is mounted in read-write mode, this allows to read/write arbitrary files which may lead do DoS scenario OR possibly lead to code execution on the host.
21 CVE-2018-16847 125 2018-11-02 2020-05-14
4.6
None Local Low Not required Partial Partial Partial
An OOB heap buffer r/w access issue was found in the NVM Express Controller emulation in QEMU. It could occur in nvme_cmb_ops routines in nvme device. A guest user/process could use this flaw to crash the QEMU process resulting in DoS or potentially run arbitrary code with privileges of the QEMU process.
22 CVE-2018-10839 190 Overflow 2018-10-16 2019-09-24
4.0
None Remote Low ??? None None Partial
Qemu emulator <= 3.0.0 built with the NE2000 NIC emulation support is vulnerable to an integer overflow, which could lead to buffer overflow issue. It could occur when receiving packets over the network. A user inside guest could use this flaw to crash the Qemu process resulting in DoS.
23 CVE-2018-7550 125 Exec Code 2018-03-01 2020-05-14
4.6
None Local Low Not required Partial Partial Partial
The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access.
24 CVE-2017-13673 617 DoS 2017-08-29 2019-10-03
4.0
None Remote Low ??? None None Partial
The vga display update in mis-calculated the region for the dirty bitmap snapshot in case split screen mode is used causing a denial of service (assertion failure) in the cpu_physical_memory_snapshot_get_dirty function.
25 CVE-2017-9060 401 DoS 2017-06-01 2020-11-10
4.9
None Local Low Not required None None Complete
Memory leak in the virtio_gpu_set_scanout function in hw/display/virtio-gpu.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (memory consumption) via a large number of "VIRTIO_GPU_CMD_SET_SCANOUT:" commands.
26 CVE-2017-8379 772 DoS 2017-05-23 2021-08-04
4.9
None Local Low Not required None None Complete
Memory leak in the keyboard input event handlers support in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events.
27 CVE-2017-8112 835 DoS 2017-05-02 2020-09-10
4.9
None Local Low Not required None None Complete
hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count.
28 CVE-2017-8086 772 DoS 2017-05-02 2020-09-10
4.9
None Local Low Not required None None Complete
Memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable.
29 CVE-2017-7980 119 DoS Exec Code Overflow 2017-07-25 2021-08-04
4.6
None Local Low Not required Partial Partial Partial
Heap-based buffer overflow in Cirrus CLGD 54xx VGA Emulator in Quick Emulator (Qemu) 2.8 and earlier allows local guest OS users to execute arbitrary code or cause a denial of service (crash) via vectors related to a VNC client updating its display after a VGA operation.
30 CVE-2017-7493 732 2017-05-17 2020-10-23
4.6
None Local Low Not required Partial Partial Partial
Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could use this flaw to escalate their privileges inside guest.
31 CVE-2017-5857 401 DoS 2017-03-16 2020-11-10
4.9
None Local Low Not required None None Complete
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.
32 CVE-2017-5856 401 DoS 2017-03-16 2020-11-10
4.9
None Local Low Not required None None Complete
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.
33 CVE-2017-5579 401 DoS 2017-03-15 2020-11-10
4.9
None Local Low Not required None None Complete
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.
34 CVE-2017-5578 401 DoS 2017-03-15 2020-11-10
4.9
None Local Low Not required None None Complete
Memory leak in the virtio_gpu_resource_attach_backing function in hw/display/virtio-gpu.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.
35 CVE-2017-5552 401 DoS 2017-03-15 2020-11-10
4.9
None Local Low Not required None None Complete
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.
36 CVE-2017-5526 401 DoS 2017-03-15 2020-11-10
4.9
None Local Low Not required None None Complete
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.
37 CVE-2017-5525 401 DoS 2017-03-15 2020-11-10
4.9
None Local Low Not required None None Complete
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.
38 CVE-2017-2633 125 2018-07-27 2019-10-09
4.0
None Remote Low ??? None None Partial
An out-of-bounds memory access issue was found in Quick Emulator (QEMU) before 1.7.2 in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user inside a guest could use this flaw to crash the QEMU process.
39 CVE-2016-10155 401 DoS 2017-03-15 2020-11-10
4.9
None Local Low Not required None None Complete
Memory leak in hw/watchdog/wdt_i6300esb.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.
40 CVE-2016-9916 401 DoS 2016-12-29 2020-11-10
4.9
None Local Low Not required None None Complete
Memory leak in hw/9pfs/9p-proxy.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in the proxy backend.
41 CVE-2016-9915 401 DoS 2016-12-29 2020-11-10
4.9
None Local Low Not required None None Complete
Memory leak in hw/9pfs/9p-handle.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in the handle backend.
42 CVE-2016-9914 401 DoS 2016-12-29 2020-11-10
4.9
None Local Low Not required None None Complete
Memory leak in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in FileOperations.
43 CVE-2016-9913 401 DoS 2016-12-29 2020-11-10
4.9
None Local Low Not required None None Complete
Memory leak in the v9fs_device_unrealize_common function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) via vectors involving the order of resource cleanup.
44 CVE-2016-9912 772 2016-12-23 2020-12-14
4.9
None Local Low Not required None None Complete
Quick Emulator (Qemu) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while destroying gpu resource object in 'virtio_gpu_resource_destroy'. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.
45 CVE-2016-9911 772 2016-12-23 2021-08-04
4.9
None Local Low Not required None None Complete
Quick Emulator (Qemu) built with the USB EHCI Emulation support is vulnerable to a memory leakage issue. It could occur while processing packet data in 'ehci_init_transfer'. A guest user/process could use this issue to leak host memory, resulting in DoS for a host.
46 CVE-2016-9907 772 2016-12-23 2021-08-04
4.9
None Local Low Not required None None Complete
Quick Emulator (Qemu) built with the USB redirector usb-guest support is vulnerable to a memory leakage flaw. It could occur while destroying the USB redirector in 'usbredir_handle_destroy'. A guest user/process could use this issue to leak host memory, resulting in DoS for a host.
47 CVE-2016-9846 119 Overflow 2016-12-29 2020-11-10
4.9
None Local Low Not required None None Complete
QEMU (aka Quick Emulator) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while updating the cursor data in update_cursor_data_virgl. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.
48 CVE-2016-7909 835 DoS 2016-10-05 2020-11-10
4.9
None Local Low Not required None None Complete
The pcnet_rdra_addr function in hw/net/pcnet.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) by setting the (1) receive or (2) transmit descriptor ring length to 0.
49 CVE-2016-5403 400 DoS 2016-08-02 2021-08-04
4.9
None Local Low Not required None None Complete
The virtqueue_pop function in hw/virtio/virtio.c in QEMU allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) by submitting requests without waiting for completion.
50 CVE-2016-5338 DoS Exec Code 2016-06-14 2020-10-15
4.6
None Local Low Not required Partial Partial Partial
The (1) esp_reg_read and (2) esp_reg_write functions in hw/scsi/esp.c in QEMU allow local guest OS administrators to cause a denial of service (QEMU process crash) or execute arbitrary code on the QEMU host via vectors related to the information transfer buffer.
Total number of vulnerabilities : 78   Page : 1 (This Page)2
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