rhba-2021_0621
Vulnerability from csaf_redhat
Published
2021-02-22 10:53
Modified
2024-11-22 15:58
Summary
Red Hat Bug Fix Advisory: microcode_ctl bug fix and enhancement update

Notes

Topic
An update for microcode_ctl is now available for Red Hat Enterprise Linux 8.
Details
The microcode_ctl packages provide microcode updates for Intel and AMD processors. Bug Fix(es) and Enhancement(s): * [rhel-8.3.0.z] [HPEMC 8.3.z REGRESSION] Regression in intel microcode as of 20201110 (BZ#1907898)
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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{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for microcode_ctl is now available for Red Hat Enterprise Linux\n8.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The microcode_ctl packages provide microcode updates for Intel and AMD\nprocessors.\n\nBug Fix(es) and Enhancement(s):\n\n* [rhel-8.3.0.z] [HPEMC 8.3.z REGRESSION] Regression in intel microcode as\nof 20201110 (BZ#1907898)",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "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.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHBA-2021:0621",
        "url": "https://access.redhat.com/errata/RHBA-2021:0621"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhba-2021_0621.json"
      }
    ],
    "title": "Red Hat Bug Fix Advisory: microcode_ctl bug fix and enhancement update",
    "tracking": {
      "current_release_date": "2024-11-22T15:58:10+00:00",
      "generator": {
        "date": "2024-11-22T15:58:10+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHBA-2021:0621",
      "initial_release_date": "2021-02-22T10:53:01+00:00",
      "revision_history": [
        {
          "date": "2021-02-22T10:53:01+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2021-02-22T10:53:01+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-22T15:58:10+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux BaseOS (v. 8)",
                "product": {
                  "name": "Red Hat Enterprise Linux BaseOS (v. 8)",
                  "product_id": "BaseOS-8.3.0.Z.MAIN",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:8::baseos"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "microcode_ctl-4:20200609-2.20210216.1.el8_3.src",
                "product": {
                  "name": "microcode_ctl-4:20200609-2.20210216.1.el8_3.src",
                  "product_id": "microcode_ctl-4:20200609-2.20210216.1.el8_3.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/microcode_ctl@20200609-2.20210216.1.el8_3?arch=src\u0026epoch=4"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "microcode_ctl-4:20200609-2.20210216.1.el8_3.x86_64",
                "product": {
                  "name": "microcode_ctl-4:20200609-2.20210216.1.el8_3.x86_64",
                  "product_id": "microcode_ctl-4:20200609-2.20210216.1.el8_3.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/microcode_ctl@20200609-2.20210216.1.el8_3?arch=x86_64\u0026epoch=4"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "microcode_ctl-4:20200609-2.20210216.1.el8_3.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.3.0.Z.MAIN:microcode_ctl-4:20200609-2.20210216.1.el8_3.src"
        },
        "product_reference": "microcode_ctl-4:20200609-2.20210216.1.el8_3.src",
        "relates_to_product_reference": "BaseOS-8.3.0.Z.MAIN"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "microcode_ctl-4:20200609-2.20210216.1.el8_3.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)",
          "product_id": "BaseOS-8.3.0.Z.MAIN:microcode_ctl-4:20200609-2.20210216.1.el8_3.x86_64"
        },
        "product_reference": "microcode_ctl-4:20200609-2.20210216.1.el8_3.x86_64",
        "relates_to_product_reference": "BaseOS-8.3.0.Z.MAIN"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Intel"
          ]
        }
      ],
      "cve": "CVE-2020-8696",
      "cwe": {
        "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": "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": {
        "fixed": [
          "BaseOS-8.3.0.Z.MAIN:microcode_ctl-4:20200609-2.20210216.1.el8_3.src",
          "BaseOS-8.3.0.Z.MAIN:microcode_ctl-4:20200609-2.20210216.1.el8_3.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-8696"
        },
        {
          "category": "external",
          "summary": "RHBZ#1890355",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1890355"
        },
        {
          "category": "external",
          "summary": "RHSB-5569051",
          "url": "https://access.redhat.com/articles/5569051"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-8696",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-8696"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-8696",
          "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",
          "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00381.html"
        }
      ],
      "release_date": "2020-11-10T13:55:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-02-22T10:53:01+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant 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": [
            "BaseOS-8.3.0.Z.MAIN:microcode_ctl-4:20200609-2.20210216.1.el8_3.src",
            "BaseOS-8.3.0.Z.MAIN:microcode_ctl-4:20200609-2.20210216.1.el8_3.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHBA-2021:0621"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 2.8,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "BaseOS-8.3.0.Z.MAIN:microcode_ctl-4:20200609-2.20210216.1.el8_3.src",
            "BaseOS-8.3.0.Z.MAIN:microcode_ctl-4:20200609-2.20210216.1.el8_3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "hw: Vector Register Leakage-Active"
    }
  ]
}


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