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CVE-2019-20175

Published: 2019-12-31T04:15Z
Last Modified: 2024-11-21T04:38Z
Source: MITRE CVE List
License: MITRE-CVE-TOS
An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSI_IOCTL_SEND_COMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 (the size of a sector). NOTE: a member of the QEMU security team disputes the significance of this issue because a "privileged guest user has many ways to cause similar DoS effect, without triggering this assert. > MITRE Terms of Use apply – see LICENSE‑MITRE.txt