Bug 1519778 - (CVE-2017-5753) CVE-2017-5753 hw: cpu: speculative execution bounds-check bypass
CVE-2017-5753 hw: cpu: speculative execution bounds-check bypass
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
: ---
: ---
Assigned To: Red Hat Product Security
impact=important,public=20180103:2200...
: Security
Depends On: 1519789 1538542 1538543 1519786 1519787 1519788 1526956 1526957 1526958 1526959 1526960 1526961 1526962 1527429 1527430 1527431 1527432 1527433 1527434 1527435 1527436 1527437 1530825 1531720 1532292 1532733 1532734
Blocks: 1516900
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Reported: 2017-12-01 07:58 EST by Petr Matousek
Modified: 2018-04-10 01:07 EDT (History)
79 users (show)

See Also:
Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization). There are three primary variants of the issue which differ in the way the speculative execution can be exploited. Variant CVE-2017-5753 triggers the speculative execution by performing a bounds-check bypass. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory accesses may cause allocation into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to cross the syscall boundary and read privileged memory by conducting targeted cache side-channel attacks.
Story Points: ---
Clone Of: 1518955
: CVE-2017-5715 (view as bug list)
Environment:
Last Closed:
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Regression: ---
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:0654 None None None 2018-04-10 01:07 EDT

  None (edit)
Description Petr Matousek 2017-12-01 07:58:09 EST
An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization). There are three primary variants of the issue which differ in the way the speculative execution can be exploited.

Variant CVE-2017-5753 triggers the speculative execution by performing a bounds-check bypass. It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory accesses may cause allocation into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to cross the syscall boundary and read privileged memory by conducting targeted cache side-channel attacks.
Comment 4 Petr Matousek 2018-01-03 14:01:20 EST
Acknowledgments:

Name: Google Project Zero
Comment 6 Petr Matousek 2018-01-03 14:16:55 EST
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/speculativeexecution
Comment 8 Petr Matousek 2018-01-03 17:54:01 EST
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1530825]
Comment 10 errata-xmlrpc 2018-01-03 18:17:03 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.2 Advanced Update Support
  Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions
  Red Hat Enterprise Linux 7.2 Telco Extended Update Support

Via RHSA-2018:0010 https://access.redhat.com/errata/RHSA-2018:0010
Comment 11 errata-xmlrpc 2018-01-03 19:03:55 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.3 Extended Update Support

Via RHSA-2018:0009 https://access.redhat.com/errata/RHSA-2018:0009
Comment 12 errata-xmlrpc 2018-01-03 19:18:12 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.7 Extended Update Support

Via RHSA-2018:0011 https://access.redhat.com/errata/RHSA-2018:0011
Comment 13 errata-xmlrpc 2018-01-03 19:39:40 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0007 https://access.redhat.com/errata/RHSA-2018:0007
Comment 14 errata-xmlrpc 2018-01-03 19:43:56 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:0008 https://access.redhat.com/errata/RHSA-2018:0008
Comment 15 errata-xmlrpc 2018-01-04 00:49:58 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0016 https://access.redhat.com/errata/RHSA-2018:0016
Comment 16 errata-xmlrpc 2018-01-04 00:52:14 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.6 Advanced Update Support
  Red Hat Enterprise Linux 6.6 Telco Extended Update Support

Via RHSA-2018:0017 https://access.redhat.com/errata/RHSA-2018:0017
Comment 17 errata-xmlrpc 2018-01-04 08:06:33 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.4 Advanced Update Support

Via RHSA-2018:0018 https://access.redhat.com/errata/RHSA-2018:0018
Comment 18 errata-xmlrpc 2018-01-04 11:52:54 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.2 Advanced Update Support

Via RHSA-2018:0020 https://access.redhat.com/errata/RHSA-2018:0020
Comment 19 errata-xmlrpc 2018-01-04 11:55:54 EST
This issue has been addressed in the following products:

  Red Hat Enterprise MRG 2

Via RHSA-2018:0021 https://access.redhat.com/errata/RHSA-2018:0021
Comment 20 errata-xmlrpc 2018-01-04 12:06:14 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.5 Advanced Update Support

Via RHSA-2018:0022 https://access.redhat.com/errata/RHSA-2018:0022
Comment 21 errata-xmlrpc 2018-01-05 10:49:38 EST
This issue has been addressed in the following products:

  RHEV 3.X Hypervisor and Agents for RHEL-6
  RHEV 3.X Hypervisor and Agents for RHEL-7 ELS

Via RHSA-2018:0046 https://access.redhat.com/errata/RHSA-2018:0046
Comment 22 errata-xmlrpc 2018-01-05 10:52:36 EST
This issue has been addressed in the following products:

  RHEV 4.X RHEV-H and Agents for RHEL-7

Via RHSA-2018:0047 https://access.redhat.com/errata/RHSA-2018:0047
Comment 23 errata-xmlrpc 2018-01-05 10:56:12 EST
This issue has been addressed in the following products:

  RHEV 3.X Hypervisor and Agents for RHEL-7

Via RHSA-2018:0044 https://access.redhat.com/errata/RHSA-2018:0044
Comment 24 errata-xmlrpc 2018-01-05 11:06:48 EST
This issue has been addressed in the following products:

  RHEV 4.X RHEV-H and Agents for RHEL-7

Via RHSA-2018:0045 https://access.redhat.com/errata/RHSA-2018:0045
Comment 25 errata-xmlrpc 2018-01-15 16:36:04 EST
This issue has been addressed in the following products:

  CloudForms Management Engine 4.1

Via RHSA-2018:0089 https://access.redhat.com/errata/RHSA-2018:0089
Comment 26 errata-xmlrpc 2018-01-15 16:38:47 EST
This issue has been addressed in the following products:

  CloudForms Management Engine 4.2

Via RHSA-2018:0090 https://access.redhat.com/errata/RHSA-2018:0090
Comment 27 errata-xmlrpc 2018-01-15 16:42:06 EST
This issue has been addressed in the following products:

  CloudForms Management Engine 4.5

Via RHSA-2018:0091 https://access.redhat.com/errata/RHSA-2018:0091
Comment 28 errata-xmlrpc 2018-01-16 15:59:10 EST
This issue has been addressed in the following products:

  CloudForms Management Engine 5.5

Via RHSA-2018:0092 https://access.redhat.com/errata/RHSA-2018:0092
Comment 29 errata-xmlrpc 2018-01-25 06:27:23 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0151 https://access.redhat.com/errata/RHSA-2018:0151
Comment 30 errata-xmlrpc 2018-01-25 07:00:32 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.3 Extended Update Support

Via RHSA-2018:0182 https://access.redhat.com/errata/RHSA-2018:0182
Comment 31 errata-xmlrpc 2018-02-09 07:56:47 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5 Extended Lifecycle Support

Via RHSA-2018:0292 https://access.redhat.com/errata/RHSA-2018:0292
Comment 36 errata-xmlrpc 2018-03-07 10:26:05 EST
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5.9 Long Life

Via RHSA-2018:0464 https://access.redhat.com/errata/RHSA-2018:0464
Comment 37 errata-xmlrpc 2018-03-13 10:45:27 EDT
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.7 Extended Update Support

Via RHSA-2018:0496 https://access.redhat.com/errata/RHSA-2018:0496
Comment 38 errata-xmlrpc 2018-03-13 14:24:35 EDT
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:0512 https://access.redhat.com/errata/RHSA-2018:0512
Comment 39 errata-xmlrpc 2018-04-10 01:07:16 EDT
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0654 https://access.redhat.com/errata/RHSA-2018:0654

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