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Exposure of Sensitive Information to an Unauthorized Actor

CVE-2024-8612

Low
3.8/10

Summary

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", and "virtio_crypto_req_complete" could be larger than the actual size of the data sent to the guest. Once "virtqueue_push()" eventually calls "dma_memory_unmap" to unmap the "in_iov", it may invoke the "address_space_write" function to write back the data. Some uninitialized data may exist in the bounce buffer, leading to an information leak. This issue affects qemu package versions prior to 9.1.1.

  • LOW
  • LOCAL
  • NONE
  • CHANGED
  • NONE
  • LOW
  • LOW
  • NONE

CWE-200 - Information Exposure

An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.

References

Advisory Timeline

  • Published