CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 1CVE-2024-3567 – Qemu-kvm: net: assertion failure in update_sctp_checksum()
https://notcve.org/view.php?id=CVE-2024-3567
10 Apr 2024 — 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. Se encontró una falla en QEMU. Se produjo un error de aserción en la función update_sctp_checksum() en hw/net/net_tx_pkt.c al intentar calcular la suma de comprobación de un paquete fragmentado de tamaño corto. • https://access.redhat.com/security/cve/CVE-2024-3567 • CWE-617: Reachable Assertion •
CVSS: 6.8EPSS: 0%CPEs: 3EXPL: 0CVE-2023-6683 – Qemu: vnc: null pointer dereference in qemu_clipboard_request()
https://notcve.org/view.php?id=CVE-2023-6683
12 Jan 2024 — 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. Se encontró una falla en el servidor QEMU built-in VNC al procesar mensajes ClientCutText. Se puede acceder a la función qemu_clipb... • https://access.redhat.com/errata/RHSA-2024:2135 • CWE-476: NULL Pointer Dereference •
CVSS: 5.3EPSS: 0%CPEs: 5EXPL: 0CVE-2023-6693 – Qemu: virtio-net: stack buffer overflow in virtio_net_flush_tx()
https://notcve.org/view.php?id=CVE-2023-6693
02 Jan 2024 — 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. Se encontró un desbordamiento de búfer e... • https://access.redhat.com/errata/RHSA-2024:2962 • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 7.0EPSS: 0%CPEs: 4EXPL: 0CVE-2023-5088 – Qemu: improper ide controller reset can lead to mbr overwrite
https://notcve.org/view.php?id=CVE-2023-5088
03 Nov 2023 — 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. Un error en QEMU podría causar que una operación de E/S de invitado que de otro modo estaría dirigida a... • https://access.redhat.com/errata/RHSA-2024:2135 • CWE-662: Improper Synchronization CWE-821: Incorrect Synchronization •
CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 0CVE-2023-4135 – Out-of-bounds read information disclosure vulnerability
https://notcve.org/view.php?id=CVE-2023-4135
04 Aug 2023 — 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. Se encontró una falla de lectura de memoria fuera de los límites en el dispositivo nvme virtual en QEMU. El proceso QEMU no valida un desplazamiento proporcionado por el invitado antes de calcular un p... • https://access.redhat.com/security/cve/CVE-2023-4135 • CWE-125: Out-of-bounds Read •
CVSS: 6.5EPSS: 0%CPEs: 6EXPL: 0CVE-2023-3180 – Heap buffer overflow in virtio_crypto_sym_op_helper()
https://notcve.org/view.php?id=CVE-2023-3180
03 Aug 2023 — 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. Gaoning Pan and Xingwei Li discovered that QEMU incorrectly handled the USB xHCI controller device. A privileged guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service... • https://access.redhat.com/security/cve/CVE-2023-3180 • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 0CVE-2023-3019 – Qemu: e1000e: heap use-after-free in e1000e_write_packet_to_guest()
https://notcve.org/view.php?id=CVE-2023-3019
24 Jul 2023 — 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. An update for qemu-kvm is now available for Red Hat Enterprise Linux 9. Issues addressed include denial of service, null pointer, and use-after-free vulnerabilities. • https://access.redhat.com/errata/RHSA-2024:0135 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0CVE-2023-3354 – Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service
https://notcve.org/view.php?id=CVE-2023-3354
11 Jul 2023 — 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. Gaoning Pan and Xingwei Li discovered that QEMU incorr... • https://access.redhat.com/security/cve/CVE-2023-3354 • CWE-476: NULL Pointer Dereference •