CVE-2021-27379 – An issue was discovered in Xen through 4.11.x, allowing x86 Intel HVM guest OS users to ac …

Vuln ID: CVE-2021-27379

Published:  2021-02-18  17:15:15Z

Description: An issue was discovered in Xen through 4.11.x, allowing x86 Intel HVM guest OS users to achieve unintended read/write DMA access, and possibly cause a denial of service (host OS crash) or gain privileges. This occurs because a backport missed a flush, and thus IOMMU updates were not always correct. NOTE: this issue exists because of an incomplete fix for CVE-2020-15565.

Source: NVD.NIST.GOV