Bug 2333316 (CVE-2024-45819)

Summary:	CVE-2024-45819 xen: libxl leaks data to PVH guests via ACPI tables
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
Target Milestone:	---
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Bug Depends On:	2333332, 2333333
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Description OSIDB Bzimport 2024-12-19 13:01:16 UTC

PVH guests have their ACPI tables constructed by the toolstack.  The
construction involves building the tables in local memory, which are
then copied into guest memory.  While actually used parts of the local
memory are filled in correctly, excess space that is being allocated is
left with its prior contents.