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Search Results (Refine Search)

Search Parameters:
  • Keyword (text search): cpe:2.3:a:qemu:qemu:2.9.0:rc2:*:*:*:*:*:*
  • CPE Name Search: true
There are 122 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2023-3301

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.

Published: September 13, 2023; 1:15:10 PM -0400
V3.1: 5.6 MEDIUM
V2.0:(not available)
CVE-2023-3255

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.

Published: September 13, 2023; 1:15:09 PM -0400
V3.1: 6.5 MEDIUM
V2.0:(not available)
CVE-2023-42467

QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.

Published: September 11, 2023; 12:15:10 AM -0400
V3.1: 5.5 MEDIUM
V2.0:(not available)
CVE-2022-36648

The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier, allows remote attackers to crash the host qemu and potentially execute code on the host via execute a malformed program in the guest OS.

Published: August 22, 2023; 3:16:23 PM -0400
V3.1: 10.0 CRITICAL
V2.0:(not available)
CVE-2023-40360

QEMU through 8.0.4 accesses a NULL pointer in nvme_directive_receive in hw/nvme/ctrl.c because there is no check for whether an endurance group is configured before checking whether Flexible Data Placement is enabled.

Published: August 14, 2023; 2:15:11 PM -0400
V3.1: 5.5 MEDIUM
V2.0:(not available)
CVE-2023-4135

A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer, which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can be disclosed.

Published: August 04, 2023; 10:15:12 AM -0400
V3.1: 6.5 MEDIUM
V2.0:(not available)
CVE-2023-3180

A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypto_handle_sym_req. There is no check for the value of `src_len` and `dst_len` in virtio_crypto_sym_op_helper, potentially leading to a heap buffer overflow when the two values differ.

Published: August 03, 2023; 11:15:29 AM -0400
V3.1: 6.5 MEDIUM
V2.0:(not available)
CVE-2023-1386

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. When a local user in the guest writes an executable file with SUID or SGID, none of these privileged bits are correctly dropped. As a result, in rare circumstances, this flaw could be used by malicious users in the guest to elevate their privileges within the guest and help a host local user to elevate privileges on the host.

Published: July 24, 2023; 12:15:11 PM -0400
V3.1: 7.8 HIGH
V2.0:(not available)
CVE-2023-3354

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.

Published: July 11, 2023; 1:15:13 PM -0400
V3.1: 7.5 HIGH
V2.0:(not available)
CVE-2023-0664

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.

Published: March 29, 2023; 4:15:07 PM -0400
V3.1: 7.8 HIGH
V2.0:(not available)
CVE-2023-1544

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.

Published: March 23, 2023; 4:15:14 PM -0400
V3.1: 6.3 MEDIUM
V2.0:(not available)
CVE-2022-4144

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.

Published: November 29, 2022; 1:15:10 PM -0500
V3.1: 6.5 MEDIUM
V2.0:(not available)
CVE-2022-3872

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.

Published: November 07, 2022; 4:15:09 PM -0500
V3.1: 8.6 HIGH
V2.0:(not available)
CVE-2022-0358

A flaw was found in the QEMU virtio-fs shared file system daemon (virtiofsd) implementation. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in the directories shared by virtio-fs with unintended group ownership in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of the group. This could allow a malicious unprivileged user inside the guest to gain access to resources accessible to the root group, potentially escalating their privileges within the guest. A malicious local user in the host might also leverage this unexpected executable file created by the guest to escalate their privileges on the host system.

Published: August 29, 2022; 11:15:09 AM -0400
V3.1: 7.8 HIGH
V2.0:(not available)
CVE-2022-0216

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.

Published: August 26, 2022; 2:15:08 PM -0400
V3.1: 4.4 MEDIUM
V2.0:(not available)
CVE-2021-3929

A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.

Published: August 25, 2022; 4:15:09 PM -0400
V3.1: 8.2 HIGH
V2.0:(not available)
CVE-2021-3611

A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0.

Published: May 11, 2022; 12:15:08 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 2.1 LOW
CVE-2021-3750

A DMA reentrancy issue was found in the USB EHCI controller emulation of QEMU. EHCI does not verify if the Buffer Pointer overlaps with its MMIO region when it transfers the USB packets. Crafted content may be written to the controller's registers and trigger undesirable actions (such as reset) while the device is still transferring packets. This can ultimately lead to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code within the context of the QEMU process on the host. This flaw affects QEMU versions before 7.0.0.

Published: May 02, 2022; 3:15:08 PM -0400
V3.1: 8.2 HIGH
V2.0: 4.6 MEDIUM
CVE-2021-4207

A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor->header.width` and `cursor->header.height` can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. A malicious privileged guest user could use this flaw to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.

Published: April 29, 2022; 1:15:20 PM -0400
V3.1: 8.2 HIGH
V2.0: 4.6 MEDIUM
CVE-2021-4206

A flaw was found in the QXL display device emulation in QEMU. An integer overflow in the cursor_alloc() function can lead to the allocation of a small cursor object followed by a subsequent heap-based buffer overflow. This flaw allows a malicious privileged guest user to crash the QEMU process on the host or potentially execute arbitrary code within the context of the QEMU process.

Published: April 29, 2022; 1:15:20 PM -0400
V3.1: 8.2 HIGH
V2.0: 4.6 MEDIUM