Vulnerabilities (CVE)

Filtered by vendor Qemu Subscribe
Total 407 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2019-12929 1 Qemu 1 Qemu 2024-08-05 10.0 HIGH 9.8 CRITICAL
** DISPUTED ** The QMP guest_exec command in QEMU 4.0.0 and earlier is prone to OS command injection, which allows the attacker to achieve code execution, denial of service, or information disclosure by sending a crafted QMP command to the listening server. Note: This has been disputed as a non-issue since QEMU's -qmp interface is meant to be used by trusted users. If one is able to access this interface via a tcp socket open to the internet, then it is an insecure configuration issue.
CVE-2019-12928 1 Qemu 1 Qemu 2024-08-05 10.0 HIGH 9.8 CRITICAL
** DISPUTED ** The QMP migrate command in QEMU version 4.0.0 and earlier is vulnerable to OS command injection, which allows the remote attacker to achieve code execution, denial of service, or information disclosure by sending a crafted QMP command to the listening server. Note: This has been disputed as a non-issue since QEMU's -qmp interface is meant to be used by trusted users. If one is able to access this interface via a tcp socket open to the internet, then it is an insecure configuration issue.
CVE-2019-12247 1 Qemu 1 Qemu 2024-08-05 5.0 MEDIUM 7.5 HIGH
** DISPUTED ** QEMU 3.0.0 has an Integer Overflow because the qga/commands*.c files do not check the length of the argument list or the number of environment variables. NOTE: This has been disputed as not exploitable.
CVE-2020-24165 2 Debian, Qemu 2 Debian Linux, Qemu 2024-08-04 N/A 8.8 HIGH
An issue was discovered in TCG Accelerator in QEMU 4.2.0, allows local attackers to execute arbitrary code, escalate privileges, and cause a denial of service (DoS). Note: This is disputed as a bug and not a valid security issue by multiple third parties.
CVE-2022-35414 1 Qemu 1 Qemu 2024-08-03 6.1 MEDIUM 8.8 HIGH
** DISPUTED ** softmmu/physmem.c in QEMU through 7.0.0 can perform an uninitialized read on the translate_fail path, leading to an io_readx or io_writex crash. NOTE: a third party states that the Non-virtualization Use Case in the qemu.org reference applies here, i.e., "Bugs affecting the non-virtualization use case are not considered security bugs at this time."
CVE-2024-3567 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2024-06-10 N/A 5.5 MEDIUM
A flaw was found in QEMU. An assertion failure was present in the update_sctp_checksum() function in hw/net/net_tx_pkt.c when trying to calculate the checksum of a short-sized fragmented packet. This flaw allows a malicious guest to crash QEMU and cause a denial of service condition.
CVE-2023-1544 2 Fedoraproject, Qemu 2 Fedora, Qemu 2024-04-19 N/A 6.3 MEDIUM
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.
CVE-2023-0330 1 Qemu 1 Qemu 2024-04-19 N/A 6.0 MEDIUM
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.
CVE-2023-1386 2 Fedoraproject, Qemu 2 Fedora, Qemu 2024-04-17 N/A 7.8 HIGH
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.
CVE-2023-3354 2 Qemu, Redhat 3 Qemu, Enterprise Linux, Openstack Platform 2024-03-11 N/A 7.5 HIGH
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.
CVE-2023-2861 1 Qemu 1 Qemu 2024-03-11 N/A 7.1 HIGH
A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.
CVE-2009-3616 2 Qemu, Redhat 3 Qemu, Enterprise Linux Server, Enterprise Linux Workstation 2024-02-15 8.5 HIGH 9.9 CRITICAL
Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then (1) disconnecting during data transfer, (2) sending a message using incorrect integer data types, or (3) using the Fuzzy Screen Mode protocol, related to double free vulnerabilities.
CVE-2023-40360 1 Qemu 1 Qemu 2024-02-05 N/A 5.5 MEDIUM
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.
CVE-2023-3180 1 Qemu 1 Qemu 2024-02-05 N/A 6.5 MEDIUM
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.
CVE-2023-2680 2 Qemu, Redhat 2 Qemu, Enterprise Linux 2024-02-05 N/A 8.2 HIGH
This CVE exists because of an incomplete fix for CVE-2021-3750. More specifically, the qemu-kvm package as released for Red Hat Enterprise Linux 9.1 via RHSA-2022:7967 included a version of qemu-kvm that was actually missing the fix for CVE-2021-3750.
CVE-2023-4135 2 Fedoraproject, Qemu 2 Fedora, Qemu 2024-02-05 N/A 6.5 MEDIUM
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.
CVE-2023-0664 4 Fedoraproject, Microsoft, Qemu and 1 more 4 Fedora, Windows, Qemu and 1 more 2024-02-04 N/A 7.8 HIGH
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.
CVE-2022-4172 1 Qemu 1 Qemu 2024-02-04 N/A 6.5 MEDIUM
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.
CVE-2022-4144 3 Fedoraproject, Qemu, Redhat 4 Extra Packages For Enterprise Linux, Fedora, Qemu and 1 more 2024-02-04 N/A 6.5 MEDIUM
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.
CVE-2022-2962 1 Qemu 1 Qemu 2024-02-04 N/A 7.8 HIGH
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.