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Huawei EulerOS: CVE-2019-20175: qemu security update

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Huawei EulerOS: CVE-2019-20175: qemu security update

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
12/31/2019
Created
09/01/2020
Added
08/31/2020
Modified
11/08/2023

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.

Solution(s)

  • huawei-euleros-2_0_sp8-upgrade-qemu-img

References

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