CVE-2024-8612
Qemu-kvm: information leak in virtio devices
CVSS Score
3.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-200 |
| Published | Sep 20, 2024 |
| Last Updated | Nov 8, 2025 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8 Advanced Virtualization
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected References
access.redhat.com: https://access.redhat.com/security/cve/CVE-2024-8612 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2313760 gitlab.com: https://gitlab.com/qemu-project/qemu/-/commit/637b0aa139565cb82a7b9269e62214f87082635c security.netapp.com: https://security.netapp.com/advisory/ntap-20241108-0006/
Credits
Red Hat would like to thank Xiao Lei (FSL team), Yiming Tao (FSL team), and Yongkang Jia (FSL team) for reporting this issue.