Filtered by vendor Qemu
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Total
407 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-3947 | 1 Qemu | 1 Qemu | 2023-11-21 | 2.1 LOW | 5.5 MEDIUM |
| A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information. | |||||
| CVE-2023-2680 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2023-11-16 | 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-2023-0330 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2023-11-15 | 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-2023-5088 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2023-11-13 | 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 | 2023-11-07 | 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-2023-3180 | 3 Debian, Fedoraproject, Qemu | 3 Debian Linux, Fedora, Qemu | 2023-11-07 | 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-2023-4135 | 2 Fedoraproject, Qemu | 2 Fedora, Qemu | 2023-11-07 | 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-2023-3301 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2023-11-07 | N/A | 5.6 MEDIUM |
| 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. | |||||
| CVE-2023-3255 | 3 Fedoraproject, Qemu, Redhat | 3 Fedora, Qemu, Enterprise Linux | 2023-11-07 | N/A | 6.5 MEDIUM |
| 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. | |||||
| CVE-2023-3019 | 2 Qemu, Redhat | 2 Qemu, Enterprise Linux | 2023-11-07 | 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-2023-1386 | 2 Fedoraproject, Qemu | 2 Fedora, Qemu | 2023-11-07 | 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-2023-0664 | 4 Fedoraproject, Microsoft, Qemu and 1 more | 4 Fedora, Windows, Qemu and 1 more | 2023-11-07 | 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-2022-4144 | 3 Fedoraproject, Qemu, Redhat | 4 Extra Packages For Enterprise Linux, Fedora, Qemu and 1 more | 2023-11-07 | 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-2022-4172 | 2 Fedoraproject, Qemu | 2 Fedora, Qemu | 2023-11-07 | 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-2022-3165 | 2 Fedoraproject, Qemu | 2 Fedora, Qemu | 2023-11-07 | N/A | 6.5 MEDIUM |
| An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service. | |||||
| CVE-2022-35414 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2023-11-07 | 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-2021-4206 | 3 Debian, Qemu, Redhat | 3 Debian Linux, Qemu, Enterprise Linux | 2023-11-07 | 4.6 MEDIUM | 8.2 HIGH |
| 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. | |||||
| CVE-2021-4207 | 3 Debian, Qemu, Redhat | 3 Debian Linux, Qemu, Enterprise Linux | 2023-11-07 | 4.6 MEDIUM | 8.2 HIGH |
| 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. | |||||
| CVE-2021-3735 | 2 Debian, Qemu | 2 Debian Linux, Qemu | 2023-11-07 | N/A | 4.4 MEDIUM |
| A deadlock issue was found in the AHCI controller device of QEMU. It occurs on a software reset (ahci_reset_port) while handling a host-to-device Register FIS (Frame Information Structure) packet from the guest. A privileged user inside the guest could use this flaw to hang the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. | |||||
| CVE-2021-3607 | 3 Debian, Fedoraproject, Qemu | 3 Debian Linux, Fedora, Qemu | 2023-11-07 | 4.9 MEDIUM | 6.0 MEDIUM |
| An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a "PVRDMA_REG_DSRHIGH" write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability. | |||||