A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via improper synchronization during socket closure when a client keeps a socket open as the server is taken offline.

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7744-1 advisory.

    It was discovered that QEMU incorrectly handled certain virtio devices. A privileged guest attacker could     use this issue to cause QEMU to crash, leading to a denial of service, or possibly execute arbitrary code.
    This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-3446)

    It was discovered that QEMU incorrectly handled SDHCI device emulation. A guest attacker could possibly     use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu     22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-3447)

    It was discovered that QEMU incorrectly handled calculating the checksum of a short-sized fragmented     packet. A guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of     service. This issue only affected Ubuntu 24.04 LTS. (CVE-2024-3567)

    It was discovered that the QEMU qemu-img utility incorrectly handled certain crafted image files. An     attacker could use this issue to cause QEMU to consume resources, leading to a denial of service, or     possibly read and write to an existing external file. This issue only affected Ubuntu 22.04 LTS and Ubuntu     24.04 LTS. (CVE-2024-4467)

    It was discovered that QEMU incorrectly handled the RSS feature on virtio-net devices. A privileged guest     attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service. This issue     only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-6505)

    It was discovered that QEMU incorrectly handled the NBD server. An attacker could use this issue to cause     QEMU to consume resources, leading to a denial of service. This issue only affected Ubuntu 22.04 LTS and     Ubuntu 24.04 LTS. (CVE-2024-7409)

    It was discovered that QEMU incorrectly handled certain USB devices. A guest attacker could possibly use     this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 22.04     LTS and Ubuntu 24.04 LTS. (CVE-2024-8354)

    It was discovered that the QEMU package incorrectly set up a binfmt_misc registration with the C     (Credential) flag. A local attacker could use this with a suid/sgid binary to escalate privileges. This     update will no longer run foreign-architecture binaries with suid/sgid with elevated privileges.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4296 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4296-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Santiago Ruano Rincn     September 08, 2025                            https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : qemu     Version        : 1:5.2+dfsg-11+deb11u5     CVE ID         : CVE-2024-7409     Debian Bug     : 1111844

    Two security issues were discovered in QEMU, a fast processor     emulator, that could result in denial of service and privilege escalation.

    CVE-2024-7409

        Denial of service (DoS) in the NBD server via improper         synchronization during socket closure

    This update removes the usage of the C (Credential) flag for the     binfmt_misc registration within the qemu-user-static (and     qemu-user-binfmt) packages, as it allowed for privilege escalation when     running a suid/sgid binary under qemu-user.  This means suid/sgid     foreign-architecture binaries are not running with elevated privileges     under qemu-user anymore.  If you relied on this behavior of qemu-user in     the past (running suid/sgid foreign-arch binaries), this will require     changes to your deployment.

    In Bullseye the affected packages are qemu-user-static (and     qemu-user-binfmt).

    For Debian 11 bullseye, these problems have been fixed in version     1:5.2+dfsg-11+deb11u5.

    We recommend that you upgrade your qemu packages.

    For the detailed security status of qemu please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/qemu

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2025:02530-1 advisory.

    - CVE-2024-7409: Fixed denial of service via improper synchronization in QEMU NBD Server during socket     closure (bsc#1229007)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2024:0222 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2020-14301:
    An information disclosure vulnerability was found in libvirt in versions before 6.3.0. HTTP cookies used     to access network-based disks were saved in the XML dump of the guest domain. This flaw allows an attacker     to access potentially sensitive information in the domain configuration via the `dumpxml` command.

    CVE-2024-3446:
    A double free vulnerability was found in QEMU virtio devices (virtio-gpu, virtio-serial-bus, virtio-     crypto), where the mem_reentrancy_guard flag insufficiently protects against DMA reentrancy issues. This     issue could allow a malicious privileged guest user to crash the QEMU process on the host, resulting in a     denial of service or allow arbitrary code execution within the context of the QEMU process on the host.

    CVE-2024-4418:
    A race condition leading to a stack use-after-free flaw was found in libvirt. Due to a bad assumption in     the virNetClientIOEventLoop() method, the `data` pointer to a stack-allocated virNetClientIOEventData     structure ended up being used in the virNetClientIOEventFD callback while the data pointer's stack frame     was concurrently being freed when returning from virNetClientIOEventLoop(). The 'virtproxyd' daemon can     be used to trigger requests. If libvirt is configured with fine-grained access control, this issue, in     theory, allows a user to escape their otherwise limited access. This flaw allows a local, unprivileged     user to access virtproxyd without authenticating. Remote users would need to authenticate before they     could access it.

    CVE-2024-4467:
    A flaw was found in the QEMU disk image utility (qemu-img) 'info' command. A specially crafted image file     containing a `json:{}` value describing block devices in QMP could cause the qemu-img process on the host     to consume large amounts of memory or CPU time, leading to denial of service or read/write to an existing     external file.

    CVE-2024-7383:
    A flaw was found in libnbd. The client did not always correctly verify the NBD server's certificate when     using TLS to connect to an NBD server. This issue allows a man-in-the-middle attack on NBD traffic.

    CVE-2024-7409:
    A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via     improper synchronization during socket closure when a client keeps a socket open as the server is taken     offline.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2024:6964 advisory.

    * QEMU: virtio: DMA reentrancy issue leads to double free vulnerability (CVE-2024-3446)

    * QEMU: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure     (CVE-2024-7409)

    * libnbd: NBD server improper certificate validation (CVE-2024-7383)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via     improper synchronization during socket closure when a client keeps a socket open as the server is taken     offline. (CVE-2024-7409)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0692-1 advisory.

    - CVE-2024-8612: Fixed information leak in virtio devices (bsc#1230915).
    - CVE-2024-7409: Fixed denial of service via improper synchronization in QEMU NBD Server during socket     closure (bsc#1229007).
    - CVE-2024-3447: Fixed heap buffer overflow in sdhci_write_dataport() (bsc#1222845).

    Other fixes:

    - Fix ipxe build with new binutils (bsc#1219733, bsc#1219722).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:4304-1 advisory.

    - CVE-2024-7409: Fixed denial of service via improper synchronization in QEMU NBD Server during socket     closure (bsc#1229007)
    - CVE-2024-8354: Fixed assertion failure in usb_ep_get() in usb (bsc#1230834)
    - CVE-2024-8612: Fixed information leak in virtio devices (bsc#1230915)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:4094-1 advisory.

    Security fixes:

    - CVE-2024-8354: Fixed assertion failure in usb_ep_get() (bsc#1230834)
    - CVE-2024-8612: Fixed information leak in virtio devices (bsc#1230915)

    Update version to 8.2.7:

    Security fixes:

    - CVE-2024-7409: Fixed denial of service via improper synchronization in QEMU NBD Server during socket     closure (bsc#1229007)
    - CVE-2024-4693: Fixed improper release of configure vector in virtio-pci that lead to guest triggerable     crash (bsc#1224132)

    Other fixes:

    - added missing fix for ppc64 emulation that caused corruption in userspace (bsc#1230140)
    - target/ppc: Fix lxvx/stxvx facility check (bsc#1229929)
    - accel/kvm: check for KVM_CAP_READONLY_MEM on VM (bsc#1231519)

    Full changelog here:

    https://lore.kernel.org/qemu-devel/d9ff276f-f1ba-4e90-8343-a7a0dc2bf305@tls.msk.ru/

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:9912 advisory.

    Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of     architectures. The qemu-kvm packages provide the user-space component for running virtual machines that     use KVM.

    Security Fix(es):

    * QEMU: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure     (CVE-2024-7409)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-9136 advisory.

    - kvm-nbd-server-CVE-2024-7409-Avoid-use-after-free-when-c.patch [RHEL-52617]
    - Resolves: RHEL-52617       (CVE-2024-7409 qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket     Closure [rhel-9.5])
    - kvm-nbd-server-CVE-2024-7409-Cap-default-max-connections.patch [RHEL-52617]
    - kvm-nbd-server-CVE-2024-7409-Drop-non-negotiating-client.patch [RHEL-52617]
    - kvm-nbd-server-CVE-2024-7409-Close-stray-clients-at-serv.patch [RHEL-52617]
    - Resolves: RHEL-52617       (CVE-2024-7409 qemu-kvm: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket     Closure [rhel-9.5])
    - Resolves: RHEL-35611       (CVE-2024-4467 qemu-kvm: QEMU: 'qemu-img info' leads to host file read/write [rhel-9.5])

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:9136 advisory.

    Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of     architectures. The qemu-kvm packages provide the user-space component for running virtual machines that     use KVM.

    Security Fix(es):

    * QEMU: SR-IOV: improper validation of NumVFs leads to buffer overflow (CVE-2024-26327)

    * QEMU: virtio: DMA reentrancy issue leads to double free vulnerability (CVE-2024-3446)

    * QEMU: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure     (CVE-2024-7409)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:3948-1 advisory.

    - CVE-2024-8354: Fixed assertion failure in usb_ep_get() (bsc#1230834).
    - CVE-2024-8612: Fixed nformation leak in virtio devices (bsc#1230915).
    - CVE-2024-7409: Fixed denial of service via improper synchronization in QEMU NBD Server during socket     closure (bsc#1229007).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:6964 advisory.

    Kernel-based Virtual Machine (KVM) offers a full virtualization solution forLinux on numerous hardware     platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual     machines using KVM.The packages also provide APIs for managing and interacting with the virtualized     systems.

    Security Fix(es):

    * QEMU: virtio: DMA reentrancy issue leads to double free vulnerability (CVE-2024-3446)

    * QEMU: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure     (CVE-2024-7409)

    * libnbd: NBD server improper certificate validation (CVE-2024-7383)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2024-12792 advisory.

    - Fix CVE-2024-7383 NBD server improper certificate validation       resolves: RHEL-52728
    - Fix CVE-2022-0485: Fail nbdcopy if NBD read or write fails       resolves: rhbz#2045718
    - Contains fix for NBD Protocol Downgrade Attack (CVE-2019-14842).
    - rpc: ensure temporary GSource is removed from client event loop (Daniel P. Berrange) [Orabug: 36821472]     {CVE-2024-4418}
    - Fix off-by-one error in udevListInterfacesByStatus (Martin Kletzander) [Orabug: 36364464]     {CVE-2024-1441}
    - storage: Fix returning of locked objects from 'virStoragePoolObjListSearch' (Peter Krempa) [Orabug:
    35644221] {CVE-2023-3750}
    - virpci: Resolve leak in virPCIVirtualFunctionList cleanup (Tim Shearer) [Orabug: 35395469]     {CVE-2023-2700}
    - qemu: remove use of qemuDomainObjBeginJobWithAgent() (Jonathon Jongsma)  [Orabug: 31990187]     {CVE-2019-20485}
    - qemu: agent: set ifname to NULL after freeing (Jan Tomko)  [Orabug: 31964426]  {CVE-2020-25637}
    - rpc: require write acl for guest agent in virDomainInterfaceAddresses  (Jan Tomko)  [Orabug: 31964426]     {CVE-2020-25637}
    - rpc: add support for filtering @acls by uint params  (Jan Tomko)  [Orabug: 31964426]  {CVE-2020-25637}
    - rpc: gendispatch: handle empty flags (Jan Tomko)  [Orabug: 31964426]  {CVE-2020-25637}
    - storage: Fix daemon crash on lookup storagepool by targetpath (Yi Li)  [Orabug: 31439483]     {CVE-2020-10703}
    - qemuDomainGetStatsIOThread: Don't leak array with 0 iothreads (Peter Krempa)  [Orabug: 31251756]     {CVE-2020-12430}
    - qemu: don't hold both jobs for suspend (Jonathon Jongsma)  [Orabug: 31073098]  {CVE-2019-20485}
    - nbd/server: CVE-2024-7409: Avoid use-after-free when closing server (Eric Blake) [Orabug: 36921582]     {CVE-2024-7409}
    - nbd/server: CVE-2024-7409: Close stray clients at server-stop (Eric Blake) [Orabug: 36921582]     {CVE-2024-7409}
    - nbd/server: CVE-2024-7409: Drop non-negotiating clients (Eric Blake) [Orabug: 36921582] {CVE-2024-7409}
    - nbd/server: CVE-2024-7409: Cap default max-connections to 100 (Eric Blake) [Orabug: 36921582]     {CVE-2024-7409}
    - nbd/server: Plumb in new args to nbd_client_add() (Eric Blake) [Orabug: 36921582] {CVE-2024-7409}
    - nbd: Minor style and typo fixes (Eric Blake) [Orabug: 36921582] {CVE-2024-7409}
    - hw/virtio/virtio-crypto: Protect from DMA re-entrancy bugs (Philippe Mathieu-Daude) [Orabug: 36869694]     {CVE-2024-3446}
    - hw/char/virtio-serial-bus: Protect from DMA re-entrancy bugs (Philippe Mathieu-Daude) [Orabug: 36869694]     {CVE-2024-3446}
    - hw/display/virtio-gpu: Protect from DMA re-entrancy bugs (Philippe Mathieu-Daude) [Orabug: 36869694]     {CVE-2024-3446}
    - hw/virtio: Introduce virtio_bh_new_guarded() helper (Philippe Mathieu-Daude) [Orabug: 36869694]     {CVE-2024-3446}
    - pcie_sriov: Validate NumVFs (Akihiko Odaki) [Orabug: 36314082] {CVE-2024-26327}
    - hw/nvme: Use pcie_sriov_num_vfs() (Akihiko Odaki) [Orabug: 36314111] {CVE-2024-26328}
    - pcie: Introduce pcie_sriov_num_vfs (Akihiko Odaki) [Orabug: 36314111] {CVE-2024-26328}
    - qcow2: Don't open data_file with BDRV_O_NO_IO (Kevin Wolf) [Orabug: 36801853] {CVE-2024-4467}
    - hw/sd/sdhci: Do not update TRNMOD when Command Inhibit (DAT) is set (hilippe Mathieu-Daude) [Orabug:
    36575206] {CVE-2024-3447}
    - ui/clipboard: add asserts for update and request (Fiona Ebner) [Orabug: 36323175] {CVE-2023-6683}
    - ui/clipboard: mark type as not available when there is no data (Fiona Ebner) [Orabug: 36323175]     {CVE-2023-6683}
    - virtio-net: correctly copy vnet header when flushing TX (Jason Wang) [Orabug: 36154459] {CVE-2023-6693}
    - esp: restrict non-DMA transfer length to that of available data (Mark Cave-Ayland) [Orabug: 36322141]     {CVE-2024-24474}
    - net: Update MemReentrancyGuard for NIC (Akihiko Odaki) [Orabug: 35644197] {CVE-2023-3019}
    - net: Provide MemReentrancyGuard * to qemu_new_nic() (Akihiko Odaki) [Orabug: 35644197] {CVE-2023-3019}
    - lsi53c895a: disable reentrancy detection for MMIO region, too (Thomas Huth) [Orabug: 33774027]     {CVE-2021-3750}
    - memory: stricter checks prior to unsetting engaged_in_io (Alexander Bulekov) [Orabug: 33774027]     {CVE-2021-3750}
    - async: avoid use-after-free on re-entrancy guard (Alexander Bulekov) [Orabug: 33774027] {CVE-2021-3750}
    - apic: disable reentrancy detection for apic-msi (Alexander Bulekov) [Orabug: 33774027] {CVE-2021-3750}
    - raven: disable reentrancy detection for iomem (Alexander Bulekov) [Orabug: 33774027] {CVE-2021-3750}
    - bcm2835_property: disable reentrancy detection for iomem (Alexander Bulekov) [Orabug: 33774027]     {CVE-2021-3750}
    - lsi53c895a: disable reentrancy detection for script RAM (Alexander Bulekov) [Orabug: 33774027]     {CVE-2021-3750}
    - hw: replace most qemu_bh_new calls with qemu_bh_new_guarded (Alexander Bulekov) [Orabug: 33774027]     {CVE-2021-3750}
    - checkpatch: add qemu_bh_new/aio_bh_new checks (Alexander Bulekov) [Orabug: 33774027] {CVE-2021-3750}
    - async: Add an optional reentrancy guard to the BH API (Alexander Bulekov) [Orabug: 33774027]     {CVE-2021-3750}
    - memory: prevent dma-reentracy issues (Alexander Bulekov) [Orabug: 33774027] {CVE-2021-3750}
    - hw/scsi/scsi-disk: Disallow block sizes smaller than 512 [CVE-2023-42467] (Thomas Huth) [Orabug:
    35808564] {CVE-2023-42467}
    - tests/qtest: ahci-test: add test exposing reset issue with pending callback (Fiona Ebner) [Orabug:
    35977245] {CVE-2023-5088}
    - hw/ide: reset: cancel async DMA operation before resetting state (Fiona Ebner) [Orabug: 35977245]     {CVE-2023-5088}
    - virtio-crypto: verify src&dst buffer length for sym request (zhenwei pi) [Orabug: 35683774]     {CVE-2023-3180}
    - io: remove io watch if TLS channel is closed during handshake (Daniel P. Berrange) [Orabug: 35683826]     {CVE-2023-3354}
    - ui/vnc-clipboard: fix infinite loop in inflate_buffer (CVE-2023-3255) (Mauro Matteo Cascella) [Orabug:
    35683770] {CVE-2023-3255}
    - hw/scsi/lsi53c895a: Fix reentrancy issues in the LSI controller (CVE-2023-0330) (Thomas Huth) [Orabug:
    35683817] {CVE-2023-0330}
    - vhost-vdpa: do not cleanup the vdpa/vhost-net structures if peer nic is present (Ani Sinha) [Orabug:
    35649138] {CVE-2023-3301}
    - 9pfs: prevent opening special files (CVE-2023-2861) (Christian Schoenebeck) [Orabug: 35570017]     {CVE-2023-2861}
    - display/qxl-render: fix race condition in qxl_cursor (CVE-2021-4207) (Mauro Matteo Cascella) [Orabug:
    34591445] {CVE-2021-4207}
    - ui/cursor: fix integer overflow in cursor_alloc (CVE-2021-4206) (Mauro Matteo Cascella) [Orabug:
    34591281] {CVE-2021-4206}
    - scsi/lsi53c895a: really fix use-after-free in lsi_do_msgout (CVE-2022-0216) (Mauro Matteo Cascella)     [Orabug: 34590706] {CVE-2022-0216}
    - scsi/lsi53c895a: fix use-after-free in lsi_do_msgout (CVE-2022-0216) (Mauro Matteo Cascella) [Orabug:
    34590706] {CVE-2022-0216}
    - tests/qtest: Add fuzz-lsi53c895a-test (Philippe Mathieu-Daude) [Orabug: 34590706] {CVE-2022-0216}
    - hw/scsi/lsi53c895a: Do not abort when DMA requested and no data queued (Philippe Mathieu-Daude) [Orabug:
    34590706] {CVE-2022-0216}
    - virtio-net: fix map leaking on error during receive (Jason Wang) [Orabug: 34538375] {CVE-2022-26353}
    - vhost-vsock: detach the virqueue element in case of error (Stefano Garzarella) [Orabug: 33941752]     {CVE-2022-26354}
    - block/mirror: fix NULL pointer dereference in mirror_wait_on_conflicts() (Stefano Garzarella) [Orabug:
    33916572] {CVE-2021-4145}
    - virtiofsd: Drop membership of all supplementary groups (CVE-2022-0358) (Vivek Goyal) [Orabug: 33816690]     {CVE-2022-0358}
    - acpi: validate hotplug selector on access (Michael S. Tsirkin) [Orabug: 33816625] {CVE-2021-4158}
    - Document CVE-2021-4158 and CVE-2021-3947 as fixed (Mark Kanda) [Orabug: 33719302] [Orabug: 33754145]     {CVE-2021-4158} {CVE-2021-3947}
    - hw/block/fdc: Kludge missing floppy drive to fix CVE-2021-20196 (Philippe Mathieu-Daude) [Orabug:
    32439466] {CVE-2021-20196}
    - hw/block/fdc: Extract blk_create_empty_drive() (Philippe Mathieu-Daude) [Orabug: 32439466]     {CVE-2021-20196}
    - net: vmxnet3: validate configuration values during activate (CVE-2021-20203) (Prasad J Pandit) [Orabug:
    32559476] {CVE-2021-20203}
    - lan9118: switch to use qemu_receive_packet() for loopback (Alexander Bulekov) [Orabug: 32560540]     {CVE-2021-3416}
    - pcnet: switch to use qemu_receive_packet() for loopback (Alexander Bulekov) [Orabug: 32560540]     {CVE-2021-3416}
    - rtl8139: switch to use qemu_receive_packet() for loopback (Alexander Bulekov) [Orabug: 32560540]     {CVE-2021-3416}
    - tx_pkt: switch to use qemu_receive_packet_iov() for loopback (Jason Wang) [Orabug: 32560540]     {CVE-2021-3416}
    - sungem: switch to use qemu_receive_packet() for loopback (Jason Wang) [Orabug: 32560540] {CVE-2021-3416}
    - dp8393x: switch to use qemu_receive_packet() for loopback packet (Jason Wang) [Orabug: 32560540]     {CVE-2021-3416}
    - e1000: switch to use qemu_receive_packet() for loopback (Jason Wang) [Orabug: 32560540] {CVE-2021-3416}
    - net: introduce qemu_receive_packet() (Jason Wang) [Orabug: 32560540] {CVE-2021-3416}
    - Update slirp to address various CVEs (Mark Kanda) [Orabug: 32208456] [Orabug: 33014409] [Orabug:
    33014414] [Orabug: 33014417] [Orabug: 33014420] {CVE-2020-29129} {CVE-2020-29130} {CVE-2021-3592}     {CVE-2021-3593} {CVE-2021-3594} {CVE-2021-3595}
    - uas: add stream number sanity checks (Gerd Hoffmann) [Orabug: 33280793] {CVE-2021-3713}
    - usbredir: fix free call (Gerd Hoffmann) [Orabug: 33198441] {CVE-2021-3682}
    - hw/scsi/scsi-disk: MODE_PAGE_ALLS not allowed in MODE SELECT commands (Mauro Matteo Cascella) [Orabug:
    33548490] {CVE-2021-3930}
    - e1000: fix tx re-entrancy problem (Jon Maloy) [Orabug: 32560552] {CVE-2021-20257}
    - pvrdma: Fix the ring init error flow (Marcel Apfelbaum) [Orabug: 33120142] {CVE-2021-3608}
    - pvrdma: Ensure correct input on ring init (Marcel Apfelbaum) [Orabug: 33120146] {CVE-2021-3607}
    - hw/rdma: Fix possible mremap overflow in the pvrdma device (Marcel Apfelbaum) [Orabug: 33120084]     {CVE-2021-3582}
    - vhost-user-gpu: reorder free calls (Gerd Hoffmann) [Orabug: 32950701] {CVE-2021-3544}
    - vhost-user-gpu: abstract vg_cleanup_mapping_iov (Li Qiang) [Orabug: 32950716] {CVE-2021-3546}
    - vhost-user-gpu: fix OOB write in 'virgl_cmd_get_capset' (Li Qiang) [Orabug: 32950716] {CVE-2021-3546}
    - vhost-user-gpu: fix memory leak in 'virgl_resource_attach_backing' (Li Qiang) [Orabug: 32950701]     {CVE-2021-3544}
    - vhost-user-gpu: fix memory leak in 'virgl_cmd_resource_unref' (Li Qiang) [Orabug: 32950701]     {CVE-2021-3544}
    - vhost-user-gpu: fix memory leak while calling 'vg_resource_unref' (Li Qiang) [Orabug: 32950701]     {CVE-2021-3544}
    - vhost-user-gpu: fix memory leak in vg_resource_attach_backing (Li Qiang) [Orabug: 32950701]     {CVE-2021-3544}
    - vhost-user-gpu: fix resource leak in 'vg_resource_create_2d' (Li Qiang) [Orabug: 32950701]     {CVE-2021-3544}
    - vhost-user-gpu: fix memory disclosure in virgl_cmd_get_capset_info (Li Qiang) [Orabug: 32950708]     {CVE-2021-3545}
    - usb: limit combined packets to 1 MiB (Gerd Hoffmann) [Orabug: 32842778] {CVE-2021-3527}
    - usb/redir: avoid dynamic stack allocation (Gerd Hoffmann) [Orabug: 32842778] {CVE-2021-3527}
    - mptsas: Remove unused MPTSASState 'pending' field (Michael Tokarev) [Orabug: 32470463] {CVE-2021-3392}
    - e1000: fail early for evil descriptor (Jason Wang) [Orabug: 32560552] {CVE-2021-20257}
    - Document CVE-2020-27661 as fixed (Mark Kanda) [Orabug: 32960200] {CVE-2020-27661}
    - imx7-ccm: add digprog mmio write method (Prasad J Pandit) [Orabug: 31576552] {CVE-2020-15469}
    - tz-ppc: add dummy read/write methods (Prasad J Pandit) [Orabug: 31576552] {CVE-2020-15469}
    - spapr_pci: add spapr msi read method (Prasad J Pandit) [Orabug: 31576552] {CVE-2020-15469}
    - nvram: add nrf51_soc flash read method (Prasad J Pandit) [Orabug: 31576552] {CVE-2020-15469}
    - prep: add ppc-parity write method (Prasad J Pandit) [Orabug: 31576552] {CVE-2020-15469}
    - vfio: add quirk device write method (Prasad J Pandit) [Orabug: 31576552] {CVE-2020-15469}
    - pci-host: designware: add pcie-msi read method (Prasad J Pandit) [Orabug: 31576552] {CVE-2020-15469}
    - hw/pci-host: add pci-intack write method (Prasad J Pandit) [Orabug: 31576552] {CVE-2020-15469}
    - hw/intc/arm_gic: Fix interrupt ID in GICD_SGIR register (Philippe Mathieu-Daude) [Orabug: 32470471]     {CVE-2021-20221}
    - memory: clamp cached translation in case it points to an MMIO region (Paolo Bonzini) [Orabug: 32252673]     {CVE-2020-27821}
    - hw/sd/sdhci: Fix DMA Transfer Block Size field (Philippe Mathieu-Daude) [Orabug: 32613470]     {CVE-2021-3409}
    - 9pfs: Fully restart unreclaim loop (CVE-2021-20181) (Greg Kurz) [Orabug: 32441198] {CVE-2021-20181}
    - ide: atapi: check logical block address and read size (CVE-2020-29443) (Prasad J Pandit) [Orabug:
    32393835] {CVE-2020-29443}
    - Document CVE-2019-20808 as fixed (Mark Kanda) [Orabug: 32339196] {CVE-2019-20808}
    - block/iscsi:fix heap-buffer-overflow in iscsi_aio_ioctl_cb (Chen Qun) [Orabug: 32339207]     {CVE-2020-11947}
    - net: remove an assert call in eth_get_gso_type (Prasad J Pandit) [Orabug: 32102583] {CVE-2020-27617}
    - Document CVE-2020-25723 as fixed (Mark Kanda) [Orabug: 32222397] {CVE-2020-25723}
    - hw/net/e1000e: advance desc_offset in case of null descriptor (Prasad J Pandit) [Orabug: 32217517]     {CVE-2020-28916}
    - libslirp: Update version to include CVE fixes (Mark Kanda) [Orabug: 32208456] [Orabug: 32208462]     {CVE-2020-29129} {CVE-2020-29130}
    - Document CVE-2020-25624 as fixed (Mark Kanda) [Orabug: 32212527] {CVE-2020-25624}
    - ati: check x y display parameter values (Prasad J Pandit) [Orabug: 32108251] {CVE-2020-27616}
    - hw: usb: hcd-ohci: check for processed TD before retire (Prasad J Pandit) [Orabug: 31901690]     {CVE-2020-25625}
    - hw: usb: hcd-ohci: check len and frame_number variables (Prasad J Pandit) [Orabug: 31901690]     {CVE-2020-25625}
    - hw: ehci: check return value of 'usb_packet_map' (Li Qiang) [Orabug: 31901649] {CVE-2020-25084}
    - hw: xhci: check return value of 'usb_packet_map' (Li Qiang) [Orabug: 31901649] {CVE-2020-25084}
    - usb: fix setup_len init (CVE-2020-14364) (Gerd Hoffmann) [Orabug: 31848849] {CVE-2020-14364}
    - Document CVE-2020-12829 and CVE-2020-14415 as fixed (Mark Kanda) [Orabug: 31855502] [Orabug: 31855427]     {CVE-2020-12829} {CVE-2020-14415}
    - hw/net/xgmac: Fix buffer overflow in xgmac_enet_send() (Mauro Matteo Cascella) [Orabug: 31667649]     {CVE-2020-15863}
    - hw/net/net_tx_pkt: fix assertion failure in net_tx_pkt_add_raw_fragment() (Mauro Matteo Cascella)     [Orabug: 31737809] {CVE-2020-16092}
    - hw/sd/sdcard: Do not switch to ReceivingData if address is invalid (Philippe Mathieu-Daude)  [Orabug:
    31414336]  {CVE-2020-13253}
    - hw/sd/sdcard: Do not allow invalid SD card sizes (Philippe Mathieu-Daude)  [Orabug: 31414336]     {CVE-2020-13253}
    - libslirp: Update to v4.3.1 to fix CVE-2020-10756 (Karl Heubaum)  [Orabug: 31604999]  {CVE-2020-10756}
    - Document CVEs as fixed 2/2 (Karl Heubaum)  [Orabug: 30618035]  {CVE-2017-18043} {CVE-2018-10839}     {CVE-2018-11806} {CVE-2018-12617} {CVE-2018-15746} {CVE-2018-16847} {CVE-2018-16867} {CVE-2018-17958}     {CVE-2018-17962} {CVE-2018-17963} {CVE-2018-18849} {CVE-2018-19364} {CVE-2018-19489} {CVE-2018-3639}     {CVE-2018-5683} {CVE-2018-7550} {CVE-2018-7858} {CVE-2019-12068} {CVE-2019-15034} {CVE-2019-15890}     {CVE-2019-20382} {CVE-2020-10702} {CVE-2020-10761} {CVE-2020-11102} {CVE-2020-11869} {CVE-2020-13361}     {CVE-2020-13765} {CVE-2020-13800} {CVE-2020-1711} {CVE-2020-1983} {CVE-2020-8608}
    - Document CVEs as fixed 1/2 (Karl Heubaum)  [Orabug: 30618035]  {CVE-2017-10806} {CVE-2017-11334}     {CVE-2017-12809} {CVE-2017-13672} {CVE-2017-13673} {CVE-2017-13711} {CVE-2017-14167} {CVE-2017-15038}     {CVE-2017-15119} {CVE-2017-15124} {CVE-2017-15268} {CVE-2017-15289} {CVE-2017-16845} {CVE-2017-17381}     {CVE-2017-18030} {CVE-2017-2630} {CVE-2017-2633} {CVE-2017-5715} {CVE-2017-5753} {CVE-2017-5754}     {CVE-2017-5931} {CVE-2017-6058} {CVE-2017-7471} {CVE-2017-7493} {CVE-2017-8112} {CVE-2017-8309}     {CVE-2017-8379} {CVE-2017-8380} {CVE-2017-9503} {CVE-2017-9524} {CVE-2018-12126} {CVE-2018-12127}     {CVE-2018-12130} {CVE-2018-16872} {CVE-2018-20123} {CVE-2018-20124} {CVE-2018-20125} {CVE-2018-20126}     {CVE-2018-20191} {CVE-2018-20216} {CVE-2018-20815} {CVE-2019-11091} {CVE-2019-12155} {CVE-2019-14378}     {CVE-2019-3812} {CVE-2019-5008} {CVE-2019-6501} {CVE-2019-6778} {CVE-2019-8934} {CVE-2019-9824}
    - exec: set map length to zero when returning NULL (Prasad J Pandit)  [Orabug: 31439733]  {CVE-2020-13659}
    - megasas: use unsigned type for reply_queue_head and check index (Prasad J Pandit)  [Orabug: 31414338]     {CVE-2020-13362}
    - memory: Revert 'memory: accept mismatching sizes in memory_region_access_valid' (Michael S. Tsirkin)     [Orabug: 31439736] [Orabug: 31452202]  {CVE-2020-13754} {CVE-2020-13791}
    - Document CVE-2020-13765 as fixed (Karl Heubaum)  [Orabug: 31463250]  {CVE-2020-13765}
    - ati-vga: check mm_index before recursive call (CVE-2020-13800) (Prasad J Pandit)  [Orabug: 31452206]     {CVE-2020-13800}
    - es1370: check total frame count against current frame (Prasad J Pandit)  [Orabug: 31463235]     {CVE-2020-13361}
    - ati-vga: Fix checks in ati_2d_blt() to avoid crash (BALATON Zoltan)  [Orabug: 31238432]     {CVE-2020-11869}
    - libslirp: Update to stable-4.2 to fix CVE-2020-1983 (Karl Heubaum)  [Orabug: 31241227]  {CVE-2020-1983}
    - Document CVEs as fixed (Karl Heubaum)   {CVE-2019-12068} {CVE-2019-15034}
    - libslirp: Update to version 4.2.0 to fix CVEs (Karl Heubaum)  [Orabug: 30274592] [Orabug: 30869830]     {CVE-2019-15890} {CVE-2020-8608}
    - vnc: fix memory leak when vnc disconnect (Li Qiang)  [Orabug: 30996427]  {CVE-2019-20382}
    - iscsi: Cap block count from GET LBA STATUS (CVE-2020-1711) (Felipe Franciosi)  [Orabug: 31124035]     {CVE-2020-1711}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:3744-1 advisory.

    Security fixes:

    - CVE-2024-8354: Fixed assertion failure in usb_ep_get() (bsc#1230834)
    - CVE-2024-8612: Fixed information leak in virtio devices (bsc#1230915)

    Update version to 8.2.7:

    Security fixes:

    - CVE-2024-7409: Fixed denial of service via improper synchronization in QEMU NBD Server during socket     closure (bsc#1229007)
    - CVE-2024-4693: Fixed improper release of configure vector in virtio-pci that lead to guest triggerable     crash (bsc#1224132)

    Other fixes:

    - added missing fix for ppc64 emulation that caused corruption in userspace (bsc#1230140)
    - target/ppc: Fix lxvx/stxvx facility check (bsc#1229929)
    - accel/kvm: check for KVM_CAP_READONLY_MEM on VM (bsc#1231519)

    Full changelog here:

    https://lore.kernel.org/qemu-devel/d9ff276f-f1ba-4e90-8343-a7a0dc2bf305@tls.msk.ru/

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:7408 advisory.

    Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of     architectures. The qemu-kvm packages provide the user-space component for running virtual machines that     use KVM.

    Security Fix(es):

    * QEMU: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure     (CVE-2024-7409)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-6964 advisory.

    - Fix CVE-2024-7383 NBD server improper certificate validation       resolves: RHEL-52728

    libtpms     libvirt     libvirt-dbus     libvirt-python     nbdkit     netcf     perl-Sys-Virt     qemu-kvm
    - kvm-nbd-server-CVE-2024-7409-Avoid-use-after-free-when-c.patch [RHEL-52611]

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:6964 advisory.

    * QEMU: virtio: DMA reentrancy issue leads to double free vulnerability (CVE-2024-3446)
    * QEMU: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure     (CVE-2024-7409)
    * libnbd: NBD server improper certificate validation (CVE-2024-7383)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2983-1 advisory.

    - CVE-2024-4467: Fixed denial of service and file read/write via qemu-img info command (bsc#1227322)
    - CVE-2024-7409: Fixed denial of service via improper synchronization in QEMU NBD Server during socket     closure (bsc#1229007)
      * nbd/server: Close stray clients at server-stop
      * nbd/server: Drop non-negotiating clients
      * nbd/server: Cap default max-connections to 100
      * nbd/server: Plumb in new args to nbd_client_add()
      * nbd: Minor style and typo fixes

    - Update qemu to version 8.2.6

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
265091	Ubuntu 22.04 LTS / 24.04 LTS / 25.04 : QEMU vulnerabilities (USN-7744-1)	Nessus	Ubuntu Local Security Checks	medium
261821	Debian dla-4296 : qemu - security update	Nessus	Debian Local Security Checks	high
242952	SUSE SLES12 Security Update : qemu (SUSE-SU-2025:02530-1)	Nessus	SuSE Local Security Checks	high
236344	Alibaba Cloud Linux 3 : 0222: virt:rhel (ALINUX3-SA-2024:0222)	Nessus	Alibaba Cloud Linux Local Security Checks	medium
235521	RockyLinux 8 : virt:rhel and virt-devel:rhel (RLSA-2024:6964)	Nessus	Rocky Linux Local Security Checks	high
231119	Linux Distros Unpatched Vulnerability : CVE-2024-7409	Nessus	Misc.	high
216730	SUSE SLES15 Security Update : qemu (SUSE-SU-2025:0692-1)	Nessus	SuSE Local Security Checks	low
212741	SUSE SLES15 Security Update : qemu (SUSE-SU-2024:4304-1)	Nessus	SuSE Local Security Checks	medium
212572	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : qemu (SUSE-SU-2024:4094-1)	Nessus	SuSE Local Security Checks	medium
211816	RHEL 9 : qemu-kvm (RHSA-2024:9912)	Nessus	Red Hat Local Security Checks	high
211532	Oracle Linux 9 : qemu-kvm (ELSA-2024-9136)	Nessus	Oracle Linux Local Security Checks	medium
210821	RHEL 9 : qemu-kvm (RHSA-2024:9136)	Nessus	Red Hat Local Security Checks	medium
210712	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : qemu (SUSE-SU-2024:3948-1)	Nessus	SuSE Local Security Checks	medium
210525	RHEL 8 : virt:rhel and virt-devel:rhel (RHSA-2024:6964)	Nessus	Red Hat Local Security Checks	high
209571	Oracle Linux 8 : virt:kvm_utils3 (ELSA-2024-12792)	Nessus	Oracle Linux Local Security Checks	high
209545	SUSE SLES15 Security Update : qemu (SUSE-SU-2024:3744-1)	Nessus	SuSE Local Security Checks	medium
207965	RHEL 9 : qemu-kvm (RHSA-2024:7408)	Nessus	Red Hat Local Security Checks	high
207772	Oracle Linux 8 : virt:ol / and / virt-devel:rhel (ELSA-2024-6964)	Nessus	Oracle Linux Local Security Checks	high
207759	AlmaLinux 8 : virt:rhel and virt-devel:rhel (ALSA-2024:6964)	Nessus	Alma Linux Local Security Checks	high
205995	SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2024:2983-1)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2024-7409

high

Tenable Plugins

medium

high

high

medium

high

high

low

medium

medium

high

medium

medium

medium

high

high

medium

high

high

high

high