rhsa-2020_5183
Vulnerability from csaf_redhat
Published
2020-11-23 17:47
Modified
2024-11-05 23:01
Summary
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update

Notes

Topic
An update for microcode_ctl is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: Information disclosure issue in Intel SGX via RAPL interface (CVE-2020-8695) * hw: Vector Register Leakage-Active (CVE-2020-8696) * hw: Fast forward store predictor (CVE-2020-8698) Bug Fix(es) and Enhancement(s): * Update Intel CPU microcode to microcode-20201112 release, addresses: - Addition of 06-55-0b/0xbf (CPX-SP A1) microcode at revision 0x700001e; - Addition of 06-8a-01/0x10 (LKF B2/B3) microcode at revision 0x28; - Addition of 06-8c-01/0x80 (TGL-UP3/UP4 B1) microcode at revision 0x68; - Addition of 06-a5-02/0x20 (CML-H R1) microcode at revision 0xe0; - Addition of 06-a5-03/0x22 (CML-S 6+2 G1) microcode at revision 0xe0; - Addition of 06-a5-05/0x22 (CML-S 10+2 Q0) microcode at revision 0xe0; - Addition of 06-a6-01/0x80 (CML-U 6+2 v2 K0) microcode at revision 0xe0; - Update of 06-4e-03/0xc0 (SKL-U/U 2+3e/Y D0/K1) microcode (in intel-06-4e-03/intel-ucode/06-4e-03) from revision 0xdc up to 0xe2; - Update of 06-55-04/0xb7 (SKX-D/SP/W/X H0/M0/M1/U0) microcode (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2006906 up to 0x2006a08; - Update of 06-5e-03/0x36 (SKL-H/S/Xeon E3 N0/R0/S0) microcode (in intel-06-5e-03/intel-ucode/06-5e-03) from revision 0xdc up to 0xe2; - Update of 06-8e-09/0x10 (AML-Y 2+2 H0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-09) from revision 0xd6 up to 0xde; - Update of 06-8e-09/0xc0 (KBL-U/U 2+3e/Y H0/J1) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-09) from revision 0xd6 up to 0xde; - Update of 06-8e-0a/0xc0 (CFL-U 4+3e D0, KBL-R Y0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0a) from revision 0xd6 up to 0xe0; - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0b) from revision 0xd6 up to 0xde; - Update of 06-8e-0c/0x94 (AML-Y 4+2 V0, CML-U 4+2 V0, WHL-U V0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0c) from revision 0xd6 up to 0xde; - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-09) from revision 0xd6 up to 0xde; - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E U0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0a) from revision 0xd6 up to 0xde; - Update of 06-9e-0b/0x02 (CFL-E/H/S B0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0b) from revision 0xd6 up to 0xde; - Update of 06-9e-0c/0x22 (CFL-H/S/Xeon E P0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0c) from revision 0xd6 up to 0xde; - Update of 06-9e-0d/0x22 (CFL-H/S/Xeon E R0) microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0d) from revision 0xd6 up to 0xde; - Update of 06-3f-02/0x6f (HSX-E/EN/EP/EP 4S C0/C1/M1/R2) microcode from revision 0x43 up to 0x44; - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000157 up to 0x1000159; - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x4002f01 up to 0x4003003; - Update of 06-55-07/0xbf (CLX-SP/W/X B1/L1) microcode from revision 0x5002f01 up to 0x5003003; - Update of 06-5c-09/0x03 (APL D0) microcode from revision 0x38 up to 0x40; - Update of 06-5c-0a/0x03 (APL B1/F1) microcode from revision 0x16 up to 0x1e; - Update of 06-7a-01/0x01 (GLK B0) microcode from revision 0x32 up to 0x34; - Update of 06-7a-08/0x01 (GLK-R R0) microcode from revision 0x16 up to 0x18; - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x78 up to 0xa0; - Update of 06-a6-00/0x80 (CML-U 6+2 A0) microcode from revision 0xca up to 0xe0. * Disable 06-8c-01 (TGL-UP3/UP4 B1) microcode update by default. * Add README file to the documentation directory. * Add publicly-sourced codenames list to supply to gen_provides.sh; update the latter to handle the somewhat different format. * Add SUMMARY.intel-ucode file
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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        "text": "The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: Information disclosure issue in Intel SGX via RAPL interface (CVE-2020-8695)\n\n* hw: Vector Register Leakage-Active (CVE-2020-8696)\n\n* hw: Fast forward store predictor (CVE-2020-8698)\n\nBug Fix(es) and Enhancement(s):\n\n* Update Intel CPU microcode to microcode-20201112 release, addresses:\n  - Addition of 06-55-0b/0xbf (CPX-SP A1) microcode at revision 0x700001e;\n  - Addition of 06-8a-01/0x10 (LKF B2/B3) microcode at revision 0x28;\n  - Addition of 06-8c-01/0x80 (TGL-UP3/UP4 B1) microcode at revision 0x68;\n  - Addition of 06-a5-02/0x20 (CML-H R1) microcode at revision 0xe0;\n  - Addition of 06-a5-03/0x22 (CML-S 6+2 G1) microcode at revision 0xe0;\n  - Addition of 06-a5-05/0x22 (CML-S 10+2 Q0) microcode at revision 0xe0;\n  - Addition of 06-a6-01/0x80 (CML-U 6+2 v2 K0) microcode at revision\n    0xe0;\n  - Update of 06-4e-03/0xc0 (SKL-U/U 2+3e/Y D0/K1) microcode (in\n    intel-06-4e-03/intel-ucode/06-4e-03) from revision 0xdc up to 0xe2;\n  - Update of 06-55-04/0xb7 (SKX-D/SP/W/X H0/M0/M1/U0) microcode (in\n    intel-06-55-04/intel-ucode/06-55-04) from revision 0x2006906 up\n    to 0x2006a08;\n  - Update of 06-5e-03/0x36 (SKL-H/S/Xeon E3 N0/R0/S0) microcode (in\n    intel-06-5e-03/intel-ucode/06-5e-03) from revision 0xdc up to 0xe2;\n  - Update of 06-8e-09/0x10 (AML-Y 2+2 H0) microcode (in\n    intel-06-8e-9e-0x-dell/intel-ucode/06-8e-09) from revision 0xd6 up\n    to 0xde;\n  - Update of 06-8e-09/0xc0 (KBL-U/U 2+3e/Y H0/J1) microcode (in\n    intel-06-8e-9e-0x-dell/intel-ucode/06-8e-09) from revision 0xd6 up\n    to 0xde;\n  - Update of 06-8e-0a/0xc0 (CFL-U 4+3e D0, KBL-R Y0) microcode (in\n    intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0a) from revision 0xd6 up\n    to 0xe0;\n  - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode (in\n    intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0b) from revision 0xd6 up\n    to 0xde;\n  - Update of 06-8e-0c/0x94 (AML-Y 4+2 V0, CML-U 4+2 V0, WHL-U V0)\n    microcode (in intel-06-8e-9e-0x-dell/intel-ucode/06-8e-0c) from\n    revision 0xd6 up to 0xde;\n  - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode (in\n    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-09) from revision 0xd6 up\n    to 0xde;\n  - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E U0) microcode (in\n    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0a) from revision 0xd6 up\n    to 0xde;\n  - Update of 06-9e-0b/0x02 (CFL-E/H/S B0) microcode (in\n    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0b) from revision 0xd6 up\n    to 0xde;\n  - Update of 06-9e-0c/0x22 (CFL-H/S/Xeon E P0) microcode (in\n    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0c) from revision 0xd6 up\n    to 0xde;\n  - Update of 06-9e-0d/0x22 (CFL-H/S/Xeon E R0) microcode (in\n    intel-06-8e-9e-0x-dell/intel-ucode/06-9e-0d) from revision 0xd6 up\n    to 0xde;\n  - Update of 06-3f-02/0x6f (HSX-E/EN/EP/EP 4S C0/C1/M1/R2) microcode\n    from revision 0x43 up to 0x44;\n  - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000157\n    up to 0x1000159;\n  - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x4002f01\n    up to 0x4003003;\n  - Update of 06-55-07/0xbf (CLX-SP/W/X B1/L1) microcode from revision\n    0x5002f01 up to 0x5003003;\n  - Update of 06-5c-09/0x03 (APL D0) microcode from revision 0x38 up\n    to 0x40;\n  - Update of 06-5c-0a/0x03 (APL B1/F1) microcode from revision 0x16 up\n    to 0x1e;\n  - Update of 06-7a-01/0x01 (GLK B0) microcode from revision 0x32 up\n    to 0x34;\n  - Update of 06-7a-08/0x01 (GLK-R R0) microcode from revision 0x16 up\n    to 0x18;\n  - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x78\n    up to 0xa0;\n  - Update of 06-a6-00/0x80 (CML-U 6+2 A0) microcode from revision 0xca\n    up to 0xe0.\n\n* Disable 06-8c-01 (TGL-UP3/UP4 B1) microcode update by default.\n\n* Add README file to the documentation directory.\n\n* Add publicly-sourced codenames list to supply to gen_provides.sh; update\n  the latter to handle the somewhat different format.\n\n* Add SUMMARY.intel-ucode file",
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  "vulnerabilities": [
    {
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      "cve": "CVE-2020-8695",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "discovery_date": "2020-04-27T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1828583"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A vulnerability was found in Intel\u0027s implementation of RAPL (Running Average Power Limit).  An attacker with a local account could query the power management functionality to intelligently infer SGX enclave computation values by measuring power usage in the RAPL subsystem.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "hw: Information disclosure issue in Intel SGX via RAPL interface",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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        ]
      },
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          "category": "self",
          "summary": "Canonical URL",
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        },
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          "category": "external",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1828583"
        },
        {
          "category": "external",
          "summary": "RHSB-5569051",
          "url": "https://access.redhat.com/articles/5569051"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-8695",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-8695"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-8695",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8695"
        },
        {
          "category": "external",
          "summary": "https://en.wikipedia.org/wiki/Power_analysis",
          "url": "https://en.wikipedia.org/wiki/Power_analysis"
        },
        {
          "category": "external",
          "summary": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00389.html",
          "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00389.html"
        }
      ],
      "release_date": "2020-11-10T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-11-23T17:47:49+00:00",
          "details": "Before applying this update, make sure all previously released errata relevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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            "7Server-7.3.AUS:microcode_ctl-2:2.1-16.37.el7_3.x86_64",
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            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2020:5183"
        },
        {
          "category": "workaround",
          "details": "Until a firmware update and reboot can be applied, the attack vector can be reduced by limiting read access to the sysfs attributes that export this functionality to userspace.  \n\nThe command:\n~~~\nsudo chmod 400 /sys/class/powercap/intel_rapl/*/energy_uj\n~~~\nWill do this for the current boot, it will need to be scripted to run at each boot to remain persistent across reboots.",
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        }
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      "threats": [
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          "details": "Moderate"
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      ],
      "title": "hw: Information disclosure issue in Intel SGX via RAPL interface"
    },
    {
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        {
          "names": [
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          ]
        }
      ],
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      },
      "discovery_date": "2020-10-22T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1890355"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the Intel Advanced Vector Extensions (AVX) implementation, where a local authenticated attacker with the ability to execute AVX instructions can gather the AVX register state from previous AVX executions. This vulnerability allows information disclosure of the AVX register state.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "hw: Vector Register Leakage-Active",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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        {
          "category": "external",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1890355"
        },
        {
          "category": "external",
          "summary": "RHSB-5569051",
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        },
        {
          "category": "external",
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          "url": "https://www.cve.org/CVERecord?id=CVE-2020-8696"
        },
        {
          "category": "external",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8696"
        },
        {
          "category": "external",
          "summary": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00381.html",
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      ],
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            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N",
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        }
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      "threats": [
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          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "hw: Vector Register Leakage-Active"
    },
    {
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        {
          "names": [
            "Intel"
          ]
        }
      ],
      "cve": "CVE-2020-8698",
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        "id": "CWE-212",
        "name": "Improper Removal of Sensitive Information Before Storage or Transfer"
      },
      "discovery_date": "2020-10-22T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1890356"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the CPU microarchitecture where a local attacker is able to abuse a timing issue which may allow them to infer internal architectural state from previous executions on the CPU.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "hw: Fast forward store predictor",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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        {
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            "userInteraction": "NONE",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "hw: Fast forward store predictor"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.