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.
{
"cna_assigner": "redhat",
"cwe_ids": [
"CWE-200"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/8xxx/CVE-2024-8612.json"
}{
"extracted_events": [
{
"range": [
{
"fixed": "637b0aa139565cb82a7b9269e62214f87082635c"
}
],
"source": "REFERENCES_COMMIT"
}
]
}