Bug 1827165 (CVE-2020-0543)

Summary: CVE-2020-0543 hw: Special Register Buffer Data Sampling (SRBDS)
Product: [Other] Security Response Reporter: Petr Matousek <pmatouse>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aarapov, abpalaci, acaringi, ailan, airlied, bhu, blc, bmasney, brdeoliv, bskeggs, ccui, cperry, crrobins, cvsbot-xmlrpc, dhoward, dominik.mierzejewski, drjones, dvlasenk, esammons, esyr, fhrbata, hdegoede, hkrzesin, iboverma, ichavero, imammedo, itamar, jarodwilson, jeremy, jforbes, jglisse, jlelli, john.j5live, jonathan, josef, jross, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, knoel, labbott, lgoncalv, lilu, linville, masami256, matt, mchehab, mcressma, mikedep333, mjg59, mlangsdo, mrezanin, mstowell, nmurray, pbonzini, poros, ptalbert, qzhao, rt-maint, rvrbovsk, security-response-team, skozina, steved, vkuznets, williams, xen-maint
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
A new domain bypass transient execution attack known as Special Register Buffer Data Sampling (SRBDS) has been found. This flaw allows data values from special internal registers to be leaked by an attacker able to execute code on any core of the CPU. An unprivileged, local attacker can use this flaw to infer values returned by affected instructions known to be commonly used during cryptographic operations that rely on uniqueness, secrecy, or both.
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-06-09 23:20:31 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1827183, 1827184, 1827185, 1827186, 1827187, 1827188, 1827189, 1827190, 1827191, 1827192, 1827193, 1827195, 1827198, 1827199, 1840668, 1840669, 1840670, 1840671, 1840672, 1840673, 1840674, 1840675, 1840676, 1840677, 1840678, 1840679, 1840680, 1840681, 1840682, 1840683, 1840684, 1840685, 1840686, 1840687, 1840688, 1840691, 1845629, 1845630    
Bug Blocks: 1773845, 1829382    

Description Petr Matousek 2020-04-23 11:47:45 UTC
Certain microprocessor operations (including RDRAND and RDSEED) are implemented using
micro-architecture specific Special Register Reads (SRR). On certain client and E3 processors,
the data returned by these SRR operations may be inferred, even on another core. Cleanup errors
from specific special register read operations may allow an authenticated user to potentially
enable information disclosure via local access.

Comment 7 Petr Matousek 2020-06-02 10:18:59 UTC
Mitigation:

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Comment 9 Petr Matousek 2020-06-02 10:39:55 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/solutions/5142691

Comment 16 Petr Matousek 2020-06-09 17:06:52 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1845629]


Created microcode_ctl tracking bugs for this issue:

Affects: fedora-all [bug 1845630]

Comment 17 errata-xmlrpc 2020-06-09 18:12:47 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:2431 https://access.redhat.com/errata/RHSA-2020:2431

Comment 18 errata-xmlrpc 2020-06-09 19:23:18 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2020:2433 https://access.redhat.com/errata/RHSA-2020:2433

Comment 19 errata-xmlrpc 2020-06-09 22:57:52 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:2432 https://access.redhat.com/errata/RHSA-2020:2432

Comment 20 Product Security DevOps Team 2020-06-09 23:20:31 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-2020-0543

Comment 27 errata-xmlrpc 2020-06-23 13:11:44 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2020:2677 https://access.redhat.com/errata/RHSA-2020:2677

Comment 28 errata-xmlrpc 2020-06-23 13:46:26 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.2 Advanced Update Support

Via RHSA-2020:2679 https://access.redhat.com/errata/RHSA-2020:2679

Comment 29 errata-xmlrpc 2020-06-23 13:52:32 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.3 Advanced Update Support
  Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions
  Red Hat Enterprise Linux 7.3 Telco Extended Update Support

Via RHSA-2020:2680 https://access.redhat.com/errata/RHSA-2020:2680

Comment 30 errata-xmlrpc 2020-06-23 15:36:20 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.5 Advanced Update Support

Via RHSA-2020:2707 https://access.redhat.com/errata/RHSA-2020:2707

Comment 31 errata-xmlrpc 2020-06-23 15:36:50 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6.6 Advanced Update Support

Via RHSA-2020:2706 https://access.redhat.com/errata/RHSA-2020:2706

Comment 32 errata-xmlrpc 2020-06-29 07:46:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

Via RHSA-2020:2757 https://access.redhat.com/errata/RHSA-2020:2757

Comment 33 errata-xmlrpc 2020-06-29 08:11:08 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.7 Extended Update Support

Via RHSA-2020:2758 https://access.redhat.com/errata/RHSA-2020:2758

Comment 34 errata-xmlrpc 2020-06-30 12:11:28 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.4 Advanced Update Support
  Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 7.4 Telco Extended Update Support

Via RHSA-2020:2771 https://access.redhat.com/errata/RHSA-2020:2771

Comment 37 errata-xmlrpc 2020-07-07 10:19:12 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.6 Extended Update Support

Via RHSA-2020:2842 https://access.redhat.com/errata/RHSA-2020:2842

Comment 43 errata-xmlrpc 2021-08-09 09:51:22 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:3027 https://access.redhat.com/errata/RHSA-2021:3027

Comment 44 errata-xmlrpc 2021-08-09 10:09:27 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2021:3028 https://access.redhat.com/errata/RHSA-2021:3028

Comment 46 errata-xmlrpc 2021-08-10 13:40:11 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.7 Extended Update Support

Via RHSA-2021:3029 https://access.redhat.com/errata/RHSA-2021:3029

Comment 47 errata-xmlrpc 2021-08-17 08:30:09 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Extended Update Support

Via RHSA-2021:3176 https://access.redhat.com/errata/RHSA-2021:3176

Comment 48 errata-xmlrpc 2021-08-24 09:54:37 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.4 Advanced Update Support
  Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 7.4 Telco Extended Update Support

Via RHSA-2021:3255 https://access.redhat.com/errata/RHSA-2021:3255

Comment 49 errata-xmlrpc 2021-08-31 07:56:51 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.2 Advanced Update Support

Via RHSA-2021:3323 https://access.redhat.com/errata/RHSA-2021:3323

Comment 50 errata-xmlrpc 2021-08-31 08:04:12 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.3 Advanced Update Support

Via RHSA-2021:3322 https://access.redhat.com/errata/RHSA-2021:3322

Comment 51 errata-xmlrpc 2021-08-31 08:24:11 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.6 Advanced Update Support
  Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 7.6 Telco Extended Update Support

Via RHSA-2021:3317 https://access.redhat.com/errata/RHSA-2021:3317

Comment 52 errata-xmlrpc 2021-08-31 09:21:17 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Extended Update Support

Via RHSA-2021:3364 https://access.redhat.com/errata/RHSA-2021:3364