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
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2021-02-18T15:05:25
Updated: 2024-08-03T20:48:16.398Z
Reserved: 2021-02-18T00:00:00
Link: CVE-2021-27379
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-02-18T17:15:15.867
Modified: 2024-11-21T05:57:52.597
Link: CVE-2021-27379
Redhat
No data.