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Bug 1997567 (CVE-2021-28695) - CVE-2021-28695 xen: discontinuous range is specified by firmware leads to vulnerability
Summary: CVE-2021-28695 xen: discontinuous range is specified by firmware leads to vul...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-28695
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1997568
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-08-25 13:07 UTC by Dhananjay Arunesh
Modified: 2021-08-26 15:35 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2021-08-26 15:35:53 UTC
Embargoed:

Attachments (Terms of Use)

Description Dhananjay Arunesh 2021-08-25 13:07:12 UTC 
On AMD systems, where a discontinuous range is specified by firmware, the supposedly-excluded middle range will also be identity-mapped.
Comment 1 Dhananjay Arunesh 2021-08-25 13:09:01 UTC 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1997568]
Comment 2 Product Security DevOps Team 2021-08-26 15:35:53 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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