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Affected Component
Analysis
xen
Exploitable
Name
CVE-2023-34326
Description
The caching invalidation guidelines from the AMD-Vi specification (48882—Rev
3.07-PUB—Oct 2022) is incorrect on some hardware, as devices will malfunction
(see stale DMA mappings) if some fields of the DTE are updated but the IOMMU
TLB is not flushed.
Such stale DMA mappings can point to memory ranges not owned by the guest, thus
allowing access to unindented memory regions.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://xenbits.xenproject.org/xsa/advisory-442.htmlVendor Advisory
https://xenbits.xenproject.org/xsa/advisory-442.htmlVendor Advisory
Analysis#
Vulnerability Ratings#
7.8
CVSSv31
7.8
CVSSv31
NaN
other
Others affected component#
Name
Project
Project Version
Version
Status
buildroot
master
4.19.5
Exploitable