{"id":"CVE-2024-8612","title":"Qemu-kvm: information leak in virtio devices","summary":"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…","severity":"low","cvss":3.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-200"],"vendor":"Red Hat","product":"qemu","affected":["qemu","qemu-kvm (all versions)","qemu-kvm","qemu-kvm","qemu-kvm-ma","virt:rhel/qemu-kvm (all versions)","virt:av/qemu-kvm (all versions)","qemu-kvm (all versions)"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-09-20T18:00:38.633928Z"},"published":"2024-09-20","updated":"2026-11-06","sourceUpdated":"2026-11-06T14:57:34.834Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-8612","references":[{"url":"https://access.redhat.com/security/cve/CVE-2024-8612"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2313760","label":"RHBZ#2313760"},{"url":"https://gitlab.com/qemu-project/qemu/-/commit/637b0aa139565cb82a7b9269e62214f87082635c"}],"tags":["cve.org"],"epss":0.00204,"epssPercentile":0.10464,"ingestedAt":"2026-11-06T15:54:04.091Z","slug":"CVE-2024-8612","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `qemu`\n- `qemu-kvm (all versions)`\n- `qemu-kvm`\n- `qemu-kvm`\n- `qemu-kvm-ma`\n- `virt:rhel/qemu-kvm (all versions)`\n- `virt:av/qemu-kvm (all versions)`\n- `qemu-kvm (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":21,"depthScoreParts":{"impact":20.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}