Debian Qemu vulnerabilities

CVE-2024-3447 [MEDIUM] CVE-2024-3447: qemu - A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. Th... A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. Scope: local bookworm: resolved (fixed

CVE-2024-6505 [MEDIUM] CVE-2024-6505: qemu - A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature... A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on

CVE-2024-4693 [MEDIUM] CVE-2024-4693: qemu - A flaw was found in the QEMU Virtio PCI Bindings (hw/virtio/virtio-pci.c). An im... A flaw was found in the QEMU Virtio PCI Bindings (hw/virtio/virtio-pci.c). An improper release and use of the irqfd for vector 0 during the boot process leads to a guest triggerable crash via vhost_net_stop(). This flaw allows a malicious guest to crash the QEMU process on the host. Scope: local bookworm: resolved bullseye: resolved forky: resolved (fixed in 1:8.2.3+ds

CVE-2024-3567 [MEDIUM] CVE-2024-3567: qemu - A flaw was found in QEMU. An assertion failure was present in the update_sctp_ch... 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. Scope: local bookworm: resolved bullseye: resolved forky: resolved (fixed in 1:8.2.3+d

CVE-2024-8612 [LOW] CVE-2024-8612: qemu - A flaw was found in QEMU, in the virtio-scsi, virtio-blk, and virtio-crypto devi... A flaw was found in QEMU, in the virtio-scsi, virtio-blk, and virtio-crypto devices. The size for virtqueue_push as set in virtio_scsi_complete_req / virtio_blk_req_complete / virito_crypto_req_complete could be larger than the true size of the data which has been sent to guest. Once virtqueue_push() finally calls dma_memory_unmap to ummap the in_iov, it may call the addr

CVE-2023-3354 [HIGH] CVE-2023-3354: qemu - A flaw was found in the QEMU built-in VNC server. When a client connects to the ... 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 i

CVE-2023-2861 [MEDIUM] CVE-2023-2861: qemu - A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU.... 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. Scope: local bookworm: resolved (fixed in 1:7.2+dfsg-7+deb12u1) bullseye: open fo

CVE-2023-3301 [MEDIUM] CVE-2023-3301: qemu - A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario... 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. Scope: local bookworm: resolved (fixed in 1:7.2+dfsg-7+deb12u1) bullseye: resolved (fixed in 1:

CVE-2023-3255 [MEDIUM] CVE-2023-3255: qemu - A flaw was found in the QEMU built-in VNC server while processing ClientCutText ... 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. Scope: local boo

CVE-2023-3180 [MEDIUM] CVE-2023-3180: qemu - A flaw was found in the QEMU virtual crypto device while handling data encryptio... 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. Scope: local bookworm: resolved (fixed in 1:7.2+dfsg-7+deb12u2) bullsey

CVE-2023-0330 [MEDIUM] CVE-2023-0330: qemu - A vulnerability in the lsi53c895a device affects the latest version of qemu. A D... 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. Scope: local bookworm: resolved (fixed in 1:7.2+dfsg-7+deb12u1) bullseye: resolved (fixed in 1:5.2+dfsg-11+deb11u3) forky: resolved (fixed in 1:8.0.2+dfsg-1) sid: resolved (fixed in 1:8.0.2+

CVE-2023-3019 [MEDIUM] CVE-2023-3019: qemu - A DMA reentrancy issue leading to a use-after-free error was found in the e1000e... 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. Scope: local bookworm: resolved (fixed in 1:7.2+dfsg-7+deb12u4) bullseye: resolved (fixed in 1:5.2+dfsg-11+deb11u4) forky: resolved (fixed in

CVE-2023-42467 [MEDIUM] CVE-2023-42467: qemu - QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scs... 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. Scope: local bookworm: resolved (fixed in 1:7.2+dfsg-7+deb12u3) bullseye: resolved forky: resolved (fixed in 1:8.1.1+ds-1) sid: resolved (fixed

CVE-2023-6693 [MEDIUM] CVE-2023-6693: qemu - A stack based buffer overflow was found in the virtio-net device of QEMU. This i... 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

CVE-2023-5088 [MEDIUM] CVE-2023-5088: qemu - A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitr... 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 gain

CVE-2023-1544 [MEDIUM] CVE-2023-1544: qemu - A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device.... 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. Scope: local bookworm: resolved (fixed in 1:7.2+dfsg-7+deb12u3) bulls

CVE-2023-6683 [MEDIUM] CVE-2023-6683: qemu - A flaw was found in the QEMU built-in VNC server while processing ClientCutText ... 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

CVE-2023-4135 [MEDIUM] CVE-2023-4135: qemu - A heap out-of-bounds memory read flaw was found in the virtual nvme device in QE... 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. Scope: local bookworm: resolved bullseye: resolved forky: re

CVE-2023-2680 [HIGH] CVE-2023-2680: qemu - This CVE exists because of an incomplete fix for CVE-2021-3750. More specificall... 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. Scope: local bookworm: resolved bullseye: resolved forky: resolved sid: resolved trixie: resolved

CVE-2023-0664 [HIGH] CVE-2023-0664: qemu - A flaw was found in the QEMU Guest Agent service for Windows. A local unprivileg... 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. Scope: local bookworm: resolved bullseye: resolved forky: resolved sid: resolved trixie: resolved