{
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      "text": "Important"
    },
    "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 edk2 is now available for Red Hat Enterprise Linux 8.\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": "EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. \n\nSecurity Fix(es):\n\n* edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe (BZ#1956284)\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.",
        "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"
      }
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      "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/RHSA-2021:3066",
        "url": "https://access.redhat.com/errata/RHSA-2021:3066"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
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      {
        "category": "external",
        "summary": "1956284",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1956284"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3066.json"
      }
    ],
    "title": "Red Hat Security Advisory: edk2 security update",
    "tracking": {
      "current_release_date": "2024-11-05T23:48:57+00:00",
      "generator": {
        "date": "2024-11-05T23:48:57+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.1.1"
        }
      },
      "id": "RHSA-2021:3066",
      "initial_release_date": "2021-08-10T16:32:45+00:00",
      "revision_history": [
        {
          "date": "2021-08-10T16:32:45+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2021-08-10T16:32:45+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-05T23:48:57+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
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    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux AppStream (v. 8)",
                "product": {
                  "name": "Red Hat Enterprise Linux AppStream (v. 8)",
                  "product_id": "AppStream-8.4.0.Z.MAIN.EUS",
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                    "cpe": "cpe:/a:redhat:enterprise_linux:8::appstream"
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                "name": "edk2-0:20200602gitca407c7246bf-4.el8_4.2.src",
                "product": {
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                    "purl": "pkg:rpm/redhat/edk2@20200602gitca407c7246bf-4.el8_4.2?arch=src"
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            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "edk2-aarch64-0:20200602gitca407c7246bf-4.el8_4.2.noarch",
                "product": {
                  "name": "edk2-aarch64-0:20200602gitca407c7246bf-4.el8_4.2.noarch",
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                "name": "edk2-ovmf-0:20200602gitca407c7246bf-4.el8_4.2.noarch",
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            "category": "architecture",
            "name": "noarch"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "edk2-0:20200602gitca407c7246bf-4.el8_4.2.src as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.4.0.Z.MAIN.EUS:edk2-0:20200602gitca407c7246bf-4.el8_4.2.src"
        },
        "product_reference": "edk2-0:20200602gitca407c7246bf-4.el8_4.2.src",
        "relates_to_product_reference": "AppStream-8.4.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "edk2-aarch64-0:20200602gitca407c7246bf-4.el8_4.2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.4.0.Z.MAIN.EUS:edk2-aarch64-0:20200602gitca407c7246bf-4.el8_4.2.noarch"
        },
        "product_reference": "edk2-aarch64-0:20200602gitca407c7246bf-4.el8_4.2.noarch",
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        },
        "product_reference": "edk2-ovmf-0:20200602gitca407c7246bf-4.el8_4.2.noarch",
        "relates_to_product_reference": "AppStream-8.4.0.Z.MAIN.EUS"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Laszlo Ersek"
          ],
          "organization": "Red Hat",
          "summary": "This issue was discovered by Red Hat."
        }
      ],
      "cve": "CVE-2021-38575",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "discovery_date": "2021-05-03T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1956284"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in edk2. Missing checks in the IScsiHexToBin function in NetworkPkg/IScsiDxe lead to a buffer overflow allowing a remote attacker, who can inject himself in the communication between edk2 and the iSCSI target, to write arbitrary data to any address in the edk2 firmware and potentially execute code. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe",
          "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": [
          "AppStream-8.4.0.Z.MAIN.EUS:edk2-0:20200602gitca407c7246bf-4.el8_4.2.src",
          "AppStream-8.4.0.Z.MAIN.EUS:edk2-aarch64-0:20200602gitca407c7246bf-4.el8_4.2.noarch",
          "AppStream-8.4.0.Z.MAIN.EUS:edk2-ovmf-0:20200602gitca407c7246bf-4.el8_4.2.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-38575"
        },
        {
          "category": "external",
          "summary": "RHBZ#1956284",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1956284"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-38575",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-38575"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-38575",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38575"
        }
      ],
      "release_date": "2021-06-08T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2021-08-10T16:32:45+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "AppStream-8.4.0.Z.MAIN.EUS:edk2-0:20200602gitca407c7246bf-4.el8_4.2.src",
            "AppStream-8.4.0.Z.MAIN.EUS:edk2-aarch64-0:20200602gitca407c7246bf-4.el8_4.2.noarch",
            "AppStream-8.4.0.Z.MAIN.EUS:edk2-ovmf-0:20200602gitca407c7246bf-4.el8_4.2.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:3066"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-8.4.0.Z.MAIN.EUS:edk2-0:20200602gitca407c7246bf-4.el8_4.2.src",
            "AppStream-8.4.0.Z.MAIN.EUS:edk2-aarch64-0:20200602gitca407c7246bf-4.el8_4.2.noarch",
            "AppStream-8.4.0.Z.MAIN.EUS:edk2-ovmf-0:20200602gitca407c7246bf-4.el8_4.2.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe"
    }
  ]
}