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        "category": "summary",
        "text": "An update for microcode_ctl is now available for Red Hat Enterprise Linux 7.\n\nRed Hat Product Security has rated this update as having a security impact of Important. 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.",
        "title": "Topic"
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        "text": "The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: vt-d related privilege escalation (CVE-2020-24489)\n\n* hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511)\n\n* hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512)\n\n* hw: information disclosure on some Intel Atom processors (CVE-2020-24513)\n\nBug Fix(es) and Enhancement(s):\n\n* Update Intel CPU microcode to microcode-20210525 release",
        "title": "Details"
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        "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.",
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        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_2300.json"
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    ],
    "title": "Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update",
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          "text": "1962650"
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          "category": "description",
          "text": "A flaw was found in Intel\u00ae VT-d products. Entries from the context cache on some types of context cache invalidations may not be properly invalidated which may allow an authenticated user to potentially enable escalation of privilege via local access. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "hw: vt-d related privilege escalation",
          "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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          "text": "Microcode misconfiguration in some Intel processors may cause EIBRS mitigation (CVE-2017-5715) to be incomplete. As a consequence, this issue may allow an authenticated user to potentially enable information disclosure via local access.",
          "title": "Vulnerability description"
        },
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          "title": "Vulnerability summary"
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          "title": "Vulnerability description"
        },
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          "text": "hw: observable timing discrepancy in some Intel Processors",
          "title": "Vulnerability summary"
        },
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          "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.",
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          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
        },
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          "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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        "text": "The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: vt-d related privilege escalation (CVE-2020-24489)\n\n* hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511)\n\n* hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512)\n\n* hw: information disclosure on some Intel Atom processors (CVE-2020-24513)\n\nBug Fix(es) and Enhancement(s):\n\n* Update Intel CPU microcode to microcode-20210525 release",
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        "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.",
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      "text": "Important"
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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
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        "url": "https://www.first.org/tlp/"
      }
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      {
        "category": "summary",
        "text": "An update for microcode_ctl is now available for Red Hat Enterprise Linux 7.\n\nRed Hat Product Security has rated this update as having a security impact of Important. 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.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The microcode_ctl packages provide microcode updates for Intel.\n\nSecurity Fix(es):\n\n* hw: vt-d related privilege escalation (CVE-2020-24489)\n\n* hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511)\n\n* hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512)\n\n* hw: information disclosure on some Intel Atom processors (CVE-2020-24513)\n\nBug Fix(es) and Enhancement(s):\n\n* Update Intel CPU microcode to microcode-20210525 release",
        "title": "Details"
      },
      {
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          "title": "Vulnerability description"
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          "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3.16-20210615.0.el7_9.noarch",
          "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-0:4.3.16-20210615.0.el7_9.src",
          "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-0:4.3.16-20210615.0.el7_9.noarch"
        ],
        "known_not_affected": [
          "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.16-1.el7ev.src",
          "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.16-1.el7ev.x86_64",
          "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3.16-1.el7ev.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-27219"
        },
        {
          "category": "external",
          "summary": "RHBZ#1929858",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1929858"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-27219",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-27219"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-27219",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27219"
        }
      ],
      "release_date": "2021-02-04T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-06-22T13:23:21+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/2974891",
          "product_ids": [
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3.16-20210615.0.el7_9.src",
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3.16-20210615.0.el7_9.noarch",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-0:4.3.16-20210615.0.el7_9.src",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-0:4.3.16-20210615.0.el7_9.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:2519"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3.16-20210615.0.el7_9.src",
            "7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3.16-20210615.0.el7_9.noarch",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.16-1.el7ev.src",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3.16-1.el7ev.x86_64",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-0:4.3.16-20210615.0.el7_9.src",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-0:4.3.16-20210615.0.el7_9.noarch",
            "7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3.16-1.el7ev.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "glib: integer overflow in g_bytes_new function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits"
    }
  ]
}