CVE-2024-8612 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Reference

https://access.redhat.com/security/cve/CVE-2024-8612 https://bugzilla.redhat.com/show_bug.cgi?id=2313760

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

3.8