Filtered by vendor Qemu
Subscribe
Total
410 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| 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 | 2 Debian, Qemu | 2 Debian Linux, 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-2022-35414 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2024-04-11 | 6.1 MEDIUM | 8.8 HIGH |
| 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-2019-20175 | 1 Qemu | 1 Qemu | 2024-04-11 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSI_IOCTL_SEND_COMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 (the size of a sector). NOTE: a member of the QEMU security team disputes the significance of this issue because a "privileged guest user has many ways to cause similar DoS effect, without triggering this assert. | |||||
| CVE-2019-12929 | 1 Qemu | 1 Qemu | 2024-04-11 | 10.0 HIGH | 9.8 CRITICAL |
| 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 | 2024-04-11 | 10.0 HIGH | 9.8 CRITICAL |
| 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 | 2024-04-11 | 5.0 MEDIUM | 7.5 HIGH |
| 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-2017-8284 | 1 Qemu | 1 Qemu | 2024-04-11 | 6.9 MEDIUM | 7.0 HIGH |
| The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated "this bug does not violate any security guarantees QEMU makes. | |||||
| CVE-2023-5088 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-03-11 | N/A | 7.0 HIGH |
| A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor to read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot. | |||||
| CVE-2023-3354 | 3 Fedoraproject, Qemu, Redhat | 4 Fedora, Qemu, Enterprise Linux and 1 more | 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-2023-6693 | 3 Fedoraproject, Qemu, Redhat | 3 Fedora, Qemu, Enterprise Linux | 2024-03-08 | N/A | 5.3 MEDIUM |
| A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak. | |||||
| CVE-2023-3019 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-03-07 | N/A | 6.5 MEDIUM |
| A DMA reentrancy issue leading to a use-after-free error was found in the e1000e NIC emulation code in QEMU. This issue could allow a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. | |||||
| CVE-2023-6683 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-02-23 | N/A | 6.5 MEDIUM |
| A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. The qemu_clipboard_request() function can be reached before vnc_server_cut_text_caps() was called and had the chance to initialize the clipboard peer, leading to a NULL pointer dereference. This could allow a malicious authenticated VNC client to crash QEMU and trigger a denial of service. | |||||
| 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-2018-7550 | 4 Canonical, Debian, Qemu and 1 more | 9 Ubuntu Linux, Debian Linux, Qemu and 6 more | 2024-01-30 | 4.6 MEDIUM | 8.8 HIGH |
| 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. | |||||
| CVE-2021-4158 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2024-01-25 | N/A | 6.0 MEDIUM |
| A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. | |||||
| CVE-2023-2680 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2023-12-28 | 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 | 2023-12-11 | 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. | |||||