发布时间: 2024年10月18日
修改时间: 2024年10月18日
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.
| NVD | openEuler | |
|---|---|---|
| CVSS评分 | 3.8 | 3.8 |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | None | None |
| Scope | Changed | Changed |
| Confidentiality | Low | Low |
| Integrity | None | None |
| Availability | None | None |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2024-4131 | qemu security update | 2024年10月18日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-5A | qemu | Fixed |
| KY3.5.2 | qemu | Fixed |
| V6 | qemu | Fixed |
