vulnerability

Debian: CVE-2021-27379: xen -- security update

Severity
6
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:C)
Published
Feb 18, 2021
Added
Apr 12, 2021
Modified
Apr 13, 2021

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

debian-upgrade-xen
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.