Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Not supplied / Not supplied | unaffected 637b0aa139565cb82a7b9269e62214f87082635c before * |
| Red Hat / Red Hat Enterprise Linux 10 | affected |
| Red Hat / Red Hat Enterprise Linux 6 | unknown |
| Red Hat / Red Hat Enterprise Linux 7 | unknown |
| Red Hat / Red Hat Enterprise Linux 7 | unknown |
| Red Hat / Red Hat Enterprise Linux 8 | affected |
| Red Hat / Red Hat Enterprise Linux 8 Advanced Virtualization | affected |
| Red Hat / Red Hat Enterprise Linux 9 | affected |
CWE
CWE-200
References
- https://access.redhat.com/security/cve/CVE-2024-8612
- https://bugzilla.redhat.com/show_bug.cgi?id=2313760
- https://gitlab.com/qemu-project/qemu/-/commit/637b0aa139565cb82a7b9269e62214f87082635c
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.