CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.5. See the original NVD description below for full technical details.
CVE
CVE-2019-20175
Severity
HIGH
CVSS
7.5
EPSS
3.36%
Original NVD Description
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.
Related CVEs
Other vulnerabilities affecting the same vendor(s)