rhsa-2020_2432
Vulnerability from csaf_redhat
Published
2020-06-10 11:12
Modified
2024-11-22 15:08
Summary
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update

Notes

Topic
Updated microcode_ctl packages that fix several security bugs and add various enhancements are now available. 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
Security Fix(es): * hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543) * hw: L1D Cache Eviction Sampling (CVE-2020-0549) * hw: Vector Register Data Sampling (CVE-2020-0548) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * Update Intel CPU microcode to microcode-20200602 release, addresses: - Update of 06-2d-06/0x6d (SNB-E/EN/EP C1/M0) microcode from revision 0x61f up to 0x621; - Update of 06-2d-07/0x6d (SNB-E/EN/EP C2/M1) microcode from revision 0x718 up to 0x71a; - Update of 06-3c-03/0x32 (HSW C0) microcode from revision 0x27 up to 0x28; - Update of 06-3d-04/0xc0 (BDW-U/Y E0/F0) microcode from revision 0x2e up to 0x2f; - Update of 06-45-01/0x72 (HSW-U C0/D0) microcode from revision 0x25 up to 0x26; - Update of 06-46-01/0x32 (HSW-H C0) microcode from revision 0x1b up to 0x1c; - Update of 06-47-01/0x22 (BDW-H/Xeon E3 E0/G0) microcode from revision 0x21 up to 0x22; - Update of 06-4e-03/0xc0 (SKL-U/Y D0) microcode from revision 0xd6 up to 0xdc; - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000151 up to 0x1000157; - Update of 06-55-04/0xb7 (SKX-SP H0/M0/U0, SKX-D M1) microcode (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2000065 up to 0x2006906; - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x400002c up to 0x4002f01; - Update of 06-55-07/0xbf (CLX-SP B1) microcode from revision 0x500002c up to 0x5002f01; - Update of 06-5e-03/0x36 (SKL-H/S R0/N0) microcode from revision 0xd6 up to 0xdc; - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46 up to 0x78; - Update of 06-8e-09/0x10 (AML-Y22 H0) microcode from revision 0xca up to 0xd6; - Update of 06-8e-09/0xc0 (KBL-U/Y H0) microcode from revision 0xca up to 0xd6; - Update of 06-8e-0a/0xc0 (CFL-U43e D0) microcode from revision 0xca up to 0xd6; - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode from revision 0xca up to 0xd6; - Update of 06-8e-0c/0x94 (AML-Y42 V0, CML-Y42 V0, WHL-U V0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E3 U0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-0b/0x02 (CFL-S B0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-0c/0x22 (CFL-H/S P0) microcode from revision 0xca up to 0xd6; - Update of 06-9e-0d/0x22 (CFL-H R0) microcode from revision 0xca up to 0xd6. - Change the URL in the intel-microcode2ucode.8 to point to the GitHub repository since the microcode download section at Intel Download Center does not exist anymore. * Narrow down SKL-SP/W/X blacklist to exclude Server/FPGA/Fabric segment models. * Re-generate initramfs not only for the currently running kernel, but for several recently installed kernels as well. * Avoid find being SIGPIPE'd on early "grep -q" exit in the dracut script. * Update stale posttrans dependency, add triggers for proper handling of the debug kernel flavour along with kernel-rt.
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": "Security Fix(es):\n\n* hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)\n\n* hw: L1D Cache Eviction Sampling (CVE-2020-0549)\n\n* hw: Vector Register Data Sampling (CVE-2020-0548)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nBug Fix(es):\n\n* Update Intel CPU microcode to microcode-20200602 release, addresses:\n  - Update of 06-2d-06/0x6d (SNB-E/EN/EP C1/M0) microcode from revision 0x61f\n    up to 0x621;\n  - Update of 06-2d-07/0x6d (SNB-E/EN/EP C2/M1) microcode from revision 0x718\n    up to 0x71a;\n  - Update of 06-3c-03/0x32 (HSW C0) microcode from revision 0x27 up to 0x28;\n  - Update of 06-3d-04/0xc0 (BDW-U/Y E0/F0) microcode from revision 0x2e\n    up to 0x2f;\n  - Update of 06-45-01/0x72 (HSW-U C0/D0) microcode from revision 0x25\n    up to 0x26;\n  - Update of 06-46-01/0x32 (HSW-H C0) microcode from revision 0x1b up to 0x1c;\n  - Update of 06-47-01/0x22 (BDW-H/Xeon E3 E0/G0) microcode from revision 0x21\n    up to 0x22;\n  - Update of 06-4e-03/0xc0 (SKL-U/Y D0) microcode from revision 0xd6\n    up to 0xdc;\n  - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000151\n    up to 0x1000157;\n  - Update of 06-55-04/0xb7 (SKX-SP H0/M0/U0, SKX-D M1) microcode\n    (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2000065\n    up to 0x2006906;\n  - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x400002c\n    up to 0x4002f01;\n  - Update of 06-55-07/0xbf (CLX-SP B1) microcode from revision 0x500002c\n    up to 0x5002f01;\n  - Update of 06-5e-03/0x36 (SKL-H/S R0/N0) microcode from revision 0xd6\n    up to 0xdc;\n  - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46\n    up to 0x78;\n  - Update of 06-8e-09/0x10 (AML-Y22 H0) microcode from revision 0xca\n    up to 0xd6;\n  - Update of 06-8e-09/0xc0 (KBL-U/Y H0) microcode from revision 0xca\n    up to 0xd6;\n  - Update of 06-8e-0a/0xc0 (CFL-U43e D0) microcode from revision 0xca\n    up to 0xd6;\n  - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode from revision 0xca\n    up to 0xd6;\n  - Update of 06-8e-0c/0x94 (AML-Y42 V0, CML-Y42 V0, WHL-U V0) microcode\n    from revision 0xca up to 0xd6;\n  - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode from revision\n    0xca up to 0xd6;\n  - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E3 U0) microcode from revision 0xca\n    up to 0xd6;\n  - Update of 06-9e-0b/0x02 (CFL-S B0) microcode from revision 0xca up to 0xd6;\n  - Update of 06-9e-0c/0x22 (CFL-H/S P0) microcode from revision 0xca\n    up to 0xd6;\n  - Update of 06-9e-0d/0x22 (CFL-H R0) microcode from revision 0xca up to 0xd6.\n- Change the URL in the intel-microcode2ucode.8 to point to the GitHub\n  repository since the microcode download section at Intel Download Center\n  does not exist anymore.\n\n* Narrow down SKL-SP/W/X blacklist to exclude Server/FPGA/Fabric segment\n  models.\n\n* Re-generate initramfs not only for the currently running kernel,\n  but for several recently installed kernels as well.\n\n* Avoid find being SIGPIPE\u0027d on early \"grep -q\" exit in the dracut script.\n\n* Update stale posttrans dependency, add triggers for proper handling\n  of the debug kernel flavour along with kernel-rt.",
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      "discovery_date": "2020-04-23T00:00:00+00:00",
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          "text": "1827165"
        }
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      "notes": [
        {
          "category": "description",
          "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.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "hw: Special Register Buffer Data Sampling (SRBDS)",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "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",
          "title": "Statement"
        },
        {
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          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2020:2432"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "7Client-7.8.Z:microcode_ctl-2:2.1-61.6.el7_8.src",
            "7Client-7.8.Z:microcode_ctl-2:2.1-61.6.el7_8.x86_64",
            "7Client-7.8.Z:microcode_ctl-debuginfo-2:2.1-61.6.el7_8.x86_64",
            "7ComputeNode-7.8.Z:microcode_ctl-2:2.1-61.6.el7_8.src",
            "7ComputeNode-7.8.Z:microcode_ctl-2:2.1-61.6.el7_8.x86_64",
            "7ComputeNode-7.8.Z:microcode_ctl-debuginfo-2:2.1-61.6.el7_8.x86_64",
            "7Server-7.8.Z:microcode_ctl-2:2.1-61.6.el7_8.src",
            "7Server-7.8.Z:microcode_ctl-2:2.1-61.6.el7_8.x86_64",
            "7Server-7.8.Z:microcode_ctl-debuginfo-2:2.1-61.6.el7_8.x86_64",
            "7Workstation-7.8.Z:microcode_ctl-2:2.1-61.6.el7_8.src",
            "7Workstation-7.8.Z:microcode_ctl-2:2.1-61.6.el7_8.x86_64",
            "7Workstation-7.8.Z:microcode_ctl-debuginfo-2:2.1-61.6.el7_8.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "hw: L1D Cache Eviction Sampling"
    }
  ]
}


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