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: 1997570
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:
Doc Type: If docs needed, set a value
Doc Text:
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.
Note You need to log in before you can comment on or make changes to this bug.