CVE-2021-27379 (GCVE-0-2021-27379)

Vulnerability from cvelistv5 – Published: 2021-02-18 15:05 – Updated: 2024-08-03 20:48
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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