rhsa-2020_2433
Vulnerability from csaf_redhat
Published
2020-06-09 19:30
Modified
2024-11-05 22:18
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 6. 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 and AMD processors. 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) and Enhancement(s): * Update Intel CPU microcode to microcode-20200602 release, addresses: - 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 06-8e-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. * Update Intel CPU microcode to microcode-20200520 release: - 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 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46 up to 0x78. (BZ#1839193) * Narrow down SKL-SP/W/X blacklist to exclude Server/FPGA/Fabric segment models. (BZ#1835555)
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 and AMD processors.\n\nSecurity 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) and Enhancement(s):\n\n* Update Intel CPU microcode to microcode-20200602 release, addresses:\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 06-8e-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\n* Update Intel CPU microcode to microcode-20200520 release:\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 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46\n    up to 0x78.\n\n(BZ#1839193)\n\n* Narrow down SKL-SP/W/X blacklist to exclude Server/FPGA/Fabric segment\n  models. (BZ#1835555)",
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    {
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      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
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      "ids": [
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          "category": "description",
          "text": "A microarchitectural timing flaw was found on some Intel processors. A corner case exists where data in-flight during the eviction process can end up in the \u201cfill buffers\u201d and not properly cleared by the MDS mitigations. The fill buffer contents (which were expected to be blank) can be inferred using MDS or TAA style attack methods to allow a local attacker to infer fill buffer values.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "hw: L1D Cache Eviction Sampling",
          "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"
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        {
          "category": "external",
          "summary": "https://access.redhat.com/solutions/l1d-cache-eviction-and-vector-register-sampling",
          "url": "https://access.redhat.com/solutions/l1d-cache-eviction-and-vector-register-sampling"
        },
        {
          "category": "external",
          "summary": "https://blogs.intel.com/technology/2020/01/ipas-intel-sa-00329/",
          "url": "https://blogs.intel.com/technology/2020/01/ipas-intel-sa-00329/"
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        {
          "category": "external",
          "summary": "https://cacheoutattack.com/CacheOut.pdf",
          "url": "https://cacheoutattack.com/CacheOut.pdf"
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        {
          "category": "external",
          "summary": "https://software.intel.com/security-software-guidance/software-guidance/l1d-eviction-sampling",
          "url": "https://software.intel.com/security-software-guidance/software-guidance/l1d-eviction-sampling"
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      "release_date": "2020-01-27T13:00:00+00:00",
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          "details": "Moderate"
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      ],
      "title": "hw: L1D Cache Eviction Sampling"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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