Bug 1930763 (CVE-2021-27379) - CVE-2021-27379 xen: Missed flush in XSA-321 backport (XSA-366)
Summary: CVE-2021-27379 xen: Missed flush in XSA-321 backport (XSA-366)
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-27379
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: 1930764
Blocks: 1930765
TreeView+ depends on / blocked
 
Reported: 2021-02-19 14:30 UTC by Pedro Sampaio
Modified: 2021-02-22 13:02 UTC (History)
3 users (show)

Fixed In Version:
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Doc Text:
A flaw was found in xen. An oversight was made when backporting XSA-320, leading to entries in the IOMMU not being properly updated under certain circumstances.
Clone Of:
Environment:
Last Closed: 2021-02-22 13:02:13 UTC
Embargoed:

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Description Pedro Sampaio 2021-02-19 14:30:03 UTC 
A flaw was found in xem. An oversight was made when backporting XSA-320, leading entries in the IOMMU not being properly updated under certain circumstances.

References:

https://xenbits.xen.org/xsa/advisory-366.html
Comment 1 Pedro Sampaio 2021-02-19 14:31:06 UTC 
Created xen tracking bugs for this issue:

Affects: fedora-all [bug 1930764]
Comment 2 Eric Christensen 2021-02-19 18:54:24 UTC 
External References:

https://xenbits.xen.org/xsa/advisory-366.html
Comment 3 Product Security DevOps Team 2021-02-22 13:02:13 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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