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SUSE: CVE-2021-27379: SUSE Linux Security Advisory

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SUSE: CVE-2021-27379: SUSE Linux Security Advisory

Severity
6
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:C)
Published
02/18/2021
Created
04/22/2021
Added
04/20/2021
Modified
10/26/2022

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.

Solution(s)

  • suse-upgrade-xen
  • suse-upgrade-xen-devel
  • suse-upgrade-xen-doc-html
  • suse-upgrade-xen-libs
  • suse-upgrade-xen-libs-32bit
  • suse-upgrade-xen-tools
  • suse-upgrade-xen-tools-domu

References

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