CVE-2024-8612
Qemu-kvm: information leak in virtio devices
Summary
Qemu-kvm: information leak in virtio devices
Original description
The description as published by the source.
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.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2024-8612 qemu
- Ubuntu UBUNTU-CVE-2024-8612 qemu
References
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- advisory security.netapp.com
- package gitlab.com
- patch gitlab.com
- report bugzilla.redhat.com
- web access.redhat.com