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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-4888-1 | xen security update |
EUVD |
EUVD-2021-14134 | 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. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
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Projects
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-03T20:48:16.398Z
Reserved: 2021-02-18T00:00:00
Link: CVE-2021-27379
No data.
Status : Modified
Published: 2021-02-18T17:15:15.867
Modified: 2024-11-21T05:57:52.597
Link: CVE-2021-27379
No data.
OpenCVE Enrichment
No data.
Weaknesses
Debian DSA
EUVD