Bug 1782199 (CVE-2019-19339) - CVE-2019-19339 kpatch: hw: incomplete fix for CVE-2018-12207
Summary: CVE-2019-19339 kpatch: hw: incomplete fix for CVE-2018-12207
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-19339
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1779250
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-12-11 12:12 UTC by Petr Matousek
Modified: 2021-02-16 20:52 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-12-17 08:09:26 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2019:4245 0 None None None 2019-12-17 07:27:38 UTC

Description Petr Matousek 2019-12-11 12:12:22 UTC 
It was found that the Red Hat Enterprise Linux 8 kpatch update did not include the complete fix for CVE-2018-12207, namely did not include commits:]

    [kvm] kvm: mmu: Do not release the page inside mmu_set_spte()
    [kvm] KVM: x86: remove now unneeded hugepage gfn adjustment

from the original IFU patchset.
Comment 1 Petr Matousek 2019-12-11 12:12:26 UTC 
Statement:

Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/ifu-page-mce
Comment 2 Petr Matousek 2019-12-11 12:12:29 UTC 
Mitigation:

For mitigation related information, please refer to the Red Hat vulnerability article: https://access.redhat.com/security/vulnerabilities/ifu-page-mce .
Comment 4 errata-xmlrpc 2019-12-17 07:27:36 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:4245 https://access.redhat.com/errata/RHSA-2019:4245
Comment 5 Product Security DevOps Team 2019-12-17 08:09:26 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-19339
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