Bug 2061721 (CVE-2022-0002) - CVE-2022-0002 hw: cpu: intel: Intra-Mode BTI
Summary: CVE-2022-0002 hw: cpu: intel: Intra-Mode BTI
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2022-0002
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: 2062155 2062156 2062157 2062158 2062159 2062160 2062161 2062634
Blocks: 2012088
TreeView+ depends on / blocked
 
Reported: 2022-03-08 12:06 UTC by Petr Matousek
Modified: 2022-06-16 11:24 UTC (History)
33 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2022-05-11 17:45:21 UTC
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2022:2229 0 None None None 2022-05-12 11:27:22 UTC
Red Hat Product Errata RHBA-2022:4630 0 None None None 2022-05-18 11:47:08 UTC
Red Hat Product Errata RHBA-2022:4693 0 None None None 2022-05-19 05:11:34 UTC
Red Hat Product Errata RHBA-2022:4969 0 None None None 2022-06-08 18:40:42 UTC
Red Hat Product Errata RHBA-2022:5088 0 None None None 2022-06-16 11:24:04 UTC
Red Hat Product Errata RHSA-2022:1975 0 None None None 2022-05-10 14:41:19 UTC
Red Hat Product Errata RHSA-2022:1988 0 None None None 2022-05-10 14:47:37 UTC

Description Petr Matousek 2022-03-08 12:06:40 UTC
Intra-mode BTI refers to a variant of BTI (Branch Target Injection aka SpectreV2) where an indirect branch speculates to an aliased predictor entry for a different indirect branch in the same predictor mode , and a disclosure gadget at the predicted target will transiently execute. Such predictor entries may contain targets corresponding to the targets of indirect near jump, indirect near call and/or near return instructions, even if these branches were only transiently executed. Managed runtimes can provide an attacker with the means to create the aliasing required for intra-mode BTI attacks.

Comment 4 errata-xmlrpc 2022-05-10 14:41:16 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:1975 https://access.redhat.com/errata/RHSA-2022:1975

Comment 5 errata-xmlrpc 2022-05-10 14:47:34 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:1988 https://access.redhat.com/errata/RHSA-2022:1988

Comment 6 Product Security DevOps Team 2022-05-11 17:45:17 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-2022-0002


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