CVSS: 5.6EPSS: 0%CPEs: 3EXPL: 0CVE-2023-3301 – Triggerable assertion due to race condition in hot-unplug
https://notcve.org/view.php?id=CVE-2023-3301
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. Se encontró una falla en QEMU. La naturaleza asíncrona de la desconexión en caliente permite un escenario de ejecución en el que el backend del dispositivo de red se borra antes de que se haya desconectado el frontend pci de virtio-net. • https://access.redhat.com/security/cve/CVE-2023-3301 https://bugzilla.redhat.com/show_bug.cgi?id=2215784 https://security.netapp.com/advisory/ntap-20231020-0008 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-617: Reachable Assertion •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 1CVE-2023-42467 – QEMU: am53c974: denial of service due to division by zero
https://notcve.org/view.php?id=CVE-2023-42467
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. QEMU hasta 8.0.0 podría desencadenar una división por cero en scsi_disk_reset en hw/scsi/scsi-disk.c porque scsi_disk_emulate_mode_select no impide que s->qdev.blocksize sea 256. Esto detiene QEMU y el invitado inmediatamente. A denial of service vulnerability was found in the qemu package. • https://gitlab.com/qemu-project/qemu/-/commit/7cfcc79b0ab800959716738aff9419f53fc68c9c https://gitlab.com/qemu-project/qemu/-/issues/1813 https://security.netapp.com/advisory/ntap-20231103-0005 https://access.redhat.com/security/cve/CVE-2023-42467 https://bugzilla.redhat.com/show_bug.cgi?id=2238291 • CWE-369: Divide By Zero •
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
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. • https://access.redhat.com/security/cve/CVE-2023-3180 https://bugzilla.redhat.com/show_bug.cgi?id=2222424 https://lists.debian.org/debian-lts-announce/2023/10/msg00006.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MURWGXDIF2WTDXV36T6HFJDBL632AO7R https://security.netapp.com/advisory/ntap-20230831-0008 • 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
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. • https://access.redhat.com/errata/RHSA-2024:0135 https://access.redhat.com/errata/RHSA-2024:0404 https://access.redhat.com/errata/RHSA-2024:0569 https://access.redhat.com/errata/RHSA-2024:2135 https://access.redhat.com/security/cve/CVE-2023-3019 https://bugzilla.redhat.com/show_bug.cgi?id=2222351 https://security.netapp.com/advisory/ntap-20230831-0005 • CWE-416: Use After Free •
CVSS: 7.5EPSS: 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
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. • https://access.redhat.com/security/cve/CVE-2023-3354 https://bugzilla.redhat.com/show_bug.cgi?id=2216478 https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MURWGXDIF2WTDXV36T6HFJDBL632AO7R • CWE-476: NULL Pointer Dereference •