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 address_space_write function to write back the data. Some uninitialized data may exist in the bounce.buffer, leading to an information leak.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-500220 advisory.

    - tests/9p: add 3 xattr FID limit test cases (local fs driver) (Christian Schoenebeck) [Orabug: 39636027]     {CVE-2026-8348}
    - tests/9p: add 3 xattr FID limit test cases (synth fs driver) (Christian Schoenebeck) [Orabug: 39636027]     {CVE-2026-8348}
    - tests/9p: add virtio_9p_add_synth_driver_args() test client function (Christian Schoenebeck) [Orabug:
    39636027] {CVE-2026-8348}
    - tests/9p: increase P9_MAX_SIZE for test client (Christian Schoenebeck) [Orabug: 39636027]     {CVE-2026-8348}
    - hw/9pfs: add xattr count query interface to fs synth driver (Christian Schoenebeck) [Orabug: 39636027]     {CVE-2026-8348}
    - hw/9pfs: enable xattr (mockup) support for synth fs driver (Christian Schoenebeck) [Orabug: 39636027]     {CVE-2026-8348}
    - tests/9p: add Txattrcreate / Rxattrcreate test client functions (Christian Schoenebeck) [Orabug:
    39636027] {CVE-2026-8348}
    - tests/9p: add Tclunk / Rclunk test client functions (Christian Schoenebeck) [Orabug: 39636027]     {CVE-2026-8348}
    - tests/9p: add Tread / Rread test client functions (Christian Schoenebeck) [Orabug: 39636027]     {CVE-2026-8348}
    - qemu-options: document 9pfs max_xattr option (Christian Schoenebeck) [Orabug: 39636027] {CVE-2026-8348}
    - hw/9pfs: add max_xattr option (Christian Schoenebeck) [Orabug: 39636027] {CVE-2026-8348}
    - hw/9pfs: add xattr FID limit to prevent memory exhaustion (Christian Schoenebeck) [Orabug: 39636027]     {CVE-2026-8348}
    - hw/9pfs: cap Treaddir allocation (CVE-2026-9238) (Christian Schoenebeck) [Orabug: 39601986]     {CVE-2026-9238}
    - 9pfs/xen: implement response_buffer_size callback (Christian Schoenebeck) [Orabug: 39601986]     {CVE-2026-9238}
    - 9pfs/virtio: implement response_buffer_size callback (Christian Schoenebeck) [Orabug: 39601986]     {CVE-2026-9238}
    - hw/9pfs: add response_buffer_size transport callback (Christian Schoenebeck) [Orabug: 39601986]     {CVE-2026-9238}
    - hw/9pfs: cap negotiated msize to transport limit (Christian Schoenebeck) [Orabug: 39601986]     {CVE-2026-9238}
    - 9pfs/xen: implement msize_limit callback (Christian Schoenebeck) [Orabug: 39601986] {CVE-2026-9238}
    - 9pfs/virtio: implement msize_limit callback (Christian Schoenebeck) [Orabug: 39601986] {CVE-2026-9238}
    - hw/9pfs: add msize_limit transport callback (Christian Schoenebeck) [Orabug: 39601986] {CVE-2026-9238}
    - 9pfs: fix missing rename lock in v9fs_co_readdir_many (CVE-2026-48004) (sin99xx) [Orabug: 39478419]     {CVE-2026-48004}
    - tests/qtest/libqos: add qvirtqueue_reset_pool() for descriptor pool reset (Christian Schoenebeck)     [Orabug: 39636027] {CVE-2026-8348}
    - libvduse: fix buffer overflow in vduse_queue_read_indirect_desc() (Stefano Garzarella) [Orabug:
    39447322] {CVE-2026-6425}
    - libvhost-user: fix buffer overflow in virtqueue_read_indirect_desc() (Stefano Garzarella) [Orabug:
    39447322] {CVE-2026-6425}
    - virtio-blk: add missing VIRTIO_BLK_T_SCSI_CMD size check (CVE-2026-48914) (Stefan Hajnoczi) [Orabug:
    39522394] {CVE-2026-48914}
    - ui: fix validation of VNC extended clipboard data length (Heechan Kang) [Orabug: 39442988]     {CVE-2026-8343}
    - ui/vnc: fix OOB read updating VNC update frequency stats (Daniel P. Berrange) [Orabug: 39447326]     {CVE-2026-48003}
    - ui/vnc: fix OOB write in lossy rect worker code (Daniel P. Berrange) [Orabug: 39447332] {CVE-2026-48002}
    - ui/vnc: fix OOB write in VNC stats array (Daniel P. Berrange) [Orabug: 39447332] {CVE-2026-48002}
    - lsi53c895a: keep a reference to the device while SCRIPTS execute (Paolo Bonzini) [Orabug: 37517793]     {CVE-2024-6519}
    - hw/scsi/lsi53c895a: fix memory leak in lsi_scsi_realize() (Zheng Huang) [Orabug: 37517793]     {CVE-2024-6519}
    - hw/scsi/lsi53c895a: bump instruction limit in scripts processing to fix regression (Fiona Ebner)     [Orabug: 37517793] {CVE-2024-6519}
    - hw/scsi/lsi53c895a: add timer to scripts processing (Sven Schnelle) [Orabug: 37517793] {CVE-2024-6519}
    - virtio-scsi: pass the same cdb_size to virtio_scsi_pop_req and virtio_scsi_handle_cmd_req_prepare (Paolo     Bonzini) [Orabug: 39414097] {CVE-2026-5763}
    - softmmu: Support concurrent bounce buffers (Mattias Nissler) [Orabug: 37509310] {CVE-2024-8612}
    - system/physmem: Per-AddressSpace bounce buffering (Mattias Nissler) [Orabug: 37509310] {CVE-2024-8612}
    - system/physmem: Propagate AddressSpace to MapClient helpers (Mattias Nissler) [Orabug: 37509310]     {CVE-2024-8612}

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 Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50337 advisory.

    - Limit recursion in ri-records (CVE-2021-3622)       resolves: rhbz#1976194
    - Bounds check for block exceeding page length (CVE-2021-3504)       resolves: rhbz#1950501
    - Fixes: CVE-2022-40284
    - Fixes: CVE-2021-46790, CVE-2022-30783, CVE-2022-30784, CVE-2022-30785,       CVE-2022-30786, CVE-2022-30787, CVE-2022-30788, CVE-2022-30789       resolves: rhbz#2127240 rhbz#2127248       (also: 2127233 2127234 2127241 2127249 2127255 2127256 2127262 2127263)
    - Fixes: CVE-2021-33285, CVE-2021-33286, CVE-2021-33287, CVE-2021-33289,       CVE-2021-35266, CVE-2021-35267, CVE-2021-35268, CVE-2021-35269,       CVE-2021-39251, CVE-2021-39252, CVE-2021-39253, CVE-2021-39254       resolves: rhbz#2004490
    - Fix for CVE-2019-9755       (heap-based buffer overflow leads to local root privilege escalation)       resolves: rhbz#1698503
    - 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).
    - Fix CVE-2025-49133       Resolves: RHEL-96251
    - Backport 'tpm2: Check size of buffer before accessing it' (CVE-2023-1017 & CVE-2023-1018)       Resolves: rhbz#2173964       Resolves: rhbz#2173970
    - Fix CVE-2021-3746 libtpms: out-of-bounds access via specially crafted TPM 2 command packets       Resolves: rhbz#1999307
    - Fix CVE-2021-3623: out-of-bounds access when trying to resume the state of the vTPM       Fixes: rhbz#1976816
    - Fix CVE-2021-3716 NBD_OPT_STRUCTURED_REPLY injection on STARTTLS       resolves: rhbz#1994915
    - ui: fix validation of VNC extended clipboard data length (Heechan Kang) [Orabug: 39442988]     {CVE-2026-8343}
    - ui/vnc: fix OOB read updating VNC update frequency stats (Daniel P. Berrange) [Orabug: 39447326]     {CVE-2026-48003}
    - ui/vnc: fix OOB write in lossy rect worker code (Daniel P. Berrange) [Orabug: 39447332] {CVE-2026-48002}
    - ui/vnc: fix OOB write in VNC stats array (Daniel P. Berrange) [Orabug: 39447332] {CVE-2026-48002}
    - lsi53c895a: keep a reference to the device while SCRIPTS execute (Paolo Bonzini) [Orabug: 37517793]     {CVE-2024-6519}
    - hw/scsi/lsi53c895a: fix memory leak in lsi_scsi_realize() (Zheng Huang) [Orabug: 37517793]     {CVE-2024-6519}
    - hw/scsi/lsi53c895a: bump instruction limit in scripts processing to fix regression (Fiona Ebner)     [Orabug: 37517793] {CVE-2024-6519}
    - hw/scsi/lsi53c895a: add timer to scripts processing (Sven Schnelle) [Orabug: 37517793] {CVE-2024-6519}
    - virtio-scsi: pass the same cdb_size to virtio_scsi_pop_req and virtio_scsi_handle_cmd_req_prepare (Paolo     Bonzini) [Orabug: 39414097] {CVE-2026-5763}
    - softmmu: Support concurrent bounce buffers (Mattias Nissler) [Orabug: 37509310] {CVE-2024-8612}
    - system/physmem: Per-AddressSpace bounce buffering (Mattias Nissler) [Orabug: 37509310] {CVE-2024-8612}
    - system/physmem: Propagate AddressSpace to MapClient helpers (Mattias Nissler) [Orabug: 37509310]     {CVE-2024-8612}
    - Document CVEs (Mark Kanda) {CVE-2025-54566} {CVE-2025-54567} {CVE-2025-8860} {CVE-2026-0665}     {CVE-2026-3886}
    - hw/usb/hcd-ohci: check for MPS=0 to avoid infinite loop (Jenny Guanni Qu) [Orabug: 39160764]     {CVE-2026-3890}
    - hyperv/syndbg: check length returned by cpu_physical_memory_map() (Paolo Bonzini) [Orabug: 39160749]     {CVE-2026-3842}
    - block/vmdk: fix OOB read in vmdk_read_extent() (Halil Oktay) [Orabug: 39160776] {CVE-2026-2243}
    - cryptodev-builtin: Limit the maximum size (zhenwei pi) [Orabug: 39173335] {CVE-2025-14876}
    - hw/virtio/virtio-crypto: verify asym request size (zhenwei pi) [Orabug: 39173335] {CVE-2025-14876}
    - io: fix use after free in websocket handshake code (Daniel P. Berrange) [Orabug: 38687831]     {CVE-2025-11234}

    seabios
    - Add fix for CVE-2022-23645.
      Resolves: rhbz#2056517
    - Update to 0.4.2, to address potential symlink vulnerabilities (CVE-2020-28407).
      Resolves: rhbz#1906043
    - Fix CVE-2022-2211 Denial of Service in --key parameter       resolves: rhbz#2102720

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.

According to the versions of the qemu packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

    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 address_space_write function to write back the     data. Some uninitialized data may exist in the bounce.buffer, leading to an information     leak.(CVE-2024-8612)

    A flaw was found in QEMU. An assertion failure was present in the usb_ep_get() function in hw/net/core.c     when trying to get the USB endpoint from a USB device. This flaw may allow a malicious unprivileged guest     user to crash the QEMU process on the host and cause a denial of service condition.(CVE-2024-8354)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization qemu 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 version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2024:0934 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2024-8612:
    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 address_space_write function to write back the     data. Some uninitialized data may exist in the bounce.buffer, leading to an information leak.

Tenable has extracted the preceding description block directly from the Tencent 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 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 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 address_space_write function to write back the     data. Some uninitialized data may exist in the bounce.buffer, leading to an information leak.
    (CVE-2024-8612)

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 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 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 version of QEMU installed on the remote Windows host is prior to 8.2.1 and therefore vulnerable to the following:
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 address_space_write function to write back the data. Some uninitialized data may exist in the bounce.buffer, leading to an information leak. 

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	Type	Severity
339119	Oracle Linux 9 : qemu-kvm (ELSA-2026-500220)	Nessus	Oracle Linux Local Security Checks	Local	high
322307	Oracle Linux 8 : virt:kvm_utils3 (ELSA-2026-50337)	Nessus	Oracle Linux Local Security Checks	Local	high
297346	EulerOS Virtualization 2.10.1 : qemu (EulerOS-SA-2026-1144)	Nessus	Huawei Local Security Checks	Local	medium
297335	EulerOS Virtualization 2.10.0 : qemu (EulerOS-SA-2026-1195)	Nessus	Huawei Local Security Checks	Local	medium
276078	TencentOS Server 4: qemu (TSSA-2024:0934)	Nessus	Tencent Local Security Checks	Local	low
232121	Linux Distros Unpatched Vulnerability : CVE-2024-8612	Nessus	Misc.	Local	low
216730	SUSE SLES15 Security Update : qemu (SUSE-SU-2025:0692-1)	Nessus	SuSE Local Security Checks	Local	low
212741	SUSE SLES15: qemu / qemu-SLOF / qemu-accel-tcg-x86 / qemu-arm / qemu-audio-alsa / etc (SUSE-SU-2024:4304-1)	Nessus	SuSE Local Security Checks	Local	medium
212572	SUSE SLED15: qemu / qemu-SLOF / qemu-accel-qtest / qemu-accel-tcg-x86 / qemu-arm / etc (SUSE-SU-2024:4094-1)	Nessus	SuSE Local Security Checks	Local	medium
210712	SUSE SLED15: qemu / qemu-SLOF / qemu-accel-qtest / qemu-accel-tcg-x86 / qemu-arm / etc (SUSE-SU-2024:3948-1)	Nessus	SuSE Local Security Checks	Local	medium
209545	SUSE SLES15: qemu / qemu-SLOF / qemu-accel-tcg-x86 / qemu-audio-alsa / etc (SUSE-SU-2024:3744-1)	Nessus	SuSE Local Security Checks	Local	medium
207835	QEMU 7.2.x < 7.2.15, 8.0.x < 8.0.6, 8.1.x < 8.1.6, 8.2.x < 8.2.8, 9.0.x < 9.0.4, 9.1.x < 9.1.1 Information Leak	Nessus	Windows	Local	low

Detections

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CVE-2024-8612

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Tenable Plugins

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high

medium

medium

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low

low

medium

medium

medium

medium

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