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      "text": "Moderate"
    },
    "category": "csaf_vex",
    "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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    },
    "lang": "en",
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      {
        "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 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.",
        "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: Predictable TCP Initial Sequence Numbers (CVE-2023-45236)\n\n* edk2: Use of a Weak PseudoRandom Number Generator (CVE-2023-45237)\n\n* edk2: Temporary DoS vulnerability (CVE-2024-1298)\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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        "url": "https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_5297.json"
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    ],
    "title": "Red Hat Security Advisory: edk2 security update",
    "tracking": {
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          "date": "2024-08-13T15:29:44+00:00",
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          "summary": "Initial version"
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          "number": "2",
          "summary": "Last updated version"
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          "text": "2258703"
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      "notes": [
        {
          "category": "description",
          "text": "A security flaw has been identified in EDK2, the open-source reference implementation of the UEFI specification. This vulnerability enables an unauthorized attacker to potentially disclose sensitive information.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "edk2: Predictable TCP Initial Sequence Numbers",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The identified flaw in the NetworkPkg IP stack within the EDK2, an open-source UEFI implementation, poses a moderate security concern as the vulnerability allows an unauthenticated attacker within the same local network to exploit.",
          "title": "Statement"
        },
        {
          "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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          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-45236",
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45236"
        },
        {
          "category": "external",
          "summary": "https://blog.quarkslab.com/pixiefail-nine-vulnerabilities-in-tianocores-edk-ii-ipv6-network-stack.html",
          "url": "https://blog.quarkslab.com/pixiefail-nine-vulnerabilities-in-tianocores-edk-ii-ipv6-network-stack.html"
        },
        {
          "category": "external",
          "summary": "https://github.com/advisories/GHSA-fqc4-ffq5-4r98",
          "url": "https://github.com/advisories/GHSA-fqc4-ffq5-4r98"
        }
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          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "edk2: Use of a Weak PseudoRandom Number Generator",
          "title": "Vulnerability summary"
        },
        {
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          "text": "The identified flaw in the NetworkPkg IP stack within the EDK2, an open-source UEFI implementation, poses a moderate security concern as the vulnerability allows an unauthenticated attacker within the same local network to exploit via a specifically crafted Destination Options IPv6 header.",
          "title": "Statement"
        },
        {
          "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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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45237"
        },
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          "summary": "https://blog.quarkslab.com/pixiefail-nine-vulnerabilities-in-tianocores-edk-ii-ipv6-network-stack.html",
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        }
      ],
      "release_date": "2024-05-31T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "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-8.10.0.Z.MAIN.EUS:edk2-0:20220126gitbb1bba3d77-13.el8_10.2.src",
            "AppStream-8.10.0.Z.MAIN.EUS:edk2-aarch64-0:20220126gitbb1bba3d77-13.el8_10.2.noarch",
            "AppStream-8.10.0.Z.MAIN.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-13.el8_10.2.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:5297"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.0,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-8.10.0.Z.MAIN.EUS:edk2-0:20220126gitbb1bba3d77-13.el8_10.2.src",
            "AppStream-8.10.0.Z.MAIN.EUS:edk2-aarch64-0:20220126gitbb1bba3d77-13.el8_10.2.noarch",
            "AppStream-8.10.0.Z.MAIN.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-13.el8_10.2.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "edk2: Temporary DoS vulnerability"
    }
  ]
}