rhsa-2024_1415
Vulnerability from csaf_redhat
Published
2024-03-19 17:30
Modified
2024-12-02 08:22
Summary
Red Hat Security Advisory: edk2 security update

Notes

Topic
An update for edk2 is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Red 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.
Details
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. Security Fix(es): * edk2: Buffer overflow in the DHCPv6 client via a long Server ID option (CVE-2023-45230) * edk2: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler() (CVE-2019-14560) * openssl: Excessive time spent checking DH keys and parameters (CVE-2023-3446) * edk2: Buffer overflow when processing DNS Servers option in a DHCPv6 Advertise message (CVE-2023-45234) 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.
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": "An update for edk2 is now available for Red Hat Enterprise Linux 8.8 Extended Update Support.\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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        "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: Buffer overflow in the DHCPv6 client via a long Server ID option (CVE-2023-45230)\n\n* edk2: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler() (CVE-2019-14560)\n\n* openssl: Excessive time spent checking DH keys and parameters (CVE-2023-3446)\n\n* edk2: Buffer overflow when processing DNS Servers option in a DHCPv6 Advertise message (CVE-2023-45234)\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"
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        "name": "Unchecked Return Value"
      },
      "discovery_date": "2020-07-16T00:00:00+00:00",
      "ids": [
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          "text": "1858038"
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      "notes": [
        {
          "category": "description",
          "text": "[REJECTED CVE] A secure boot bypass vulnerability was found in EDK2 due to the lack of proper return value checks in the GetEfiGlobalVariable2() function. The API may fail if functions like AllocatePool() or gRT-\u003eGetVariable() fail. Without verifying the return value, an attacker could cause the API to fail, potentially bypassing secure boot. This issue occurs in functions like DxeImageVerificationHandler, where the return value is not checked.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "edk2: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler()",
          "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": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-14560"
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        {
          "category": "external",
          "summary": "RHBZ#1858038",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1858038"
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        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-14560",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-14560"
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        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-14560",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-14560"
        }
      ],
      "release_date": "2020-07-01T00:00:00+00:00",
      "remediations": [
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          "category": "vendor_fix",
          "date": "2024-03-19T17:30:47+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",
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      "scores": [
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            "attackVector": "LOCAL",
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            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:L",
            "version": "3.1"
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            "AppStream-8.8.0.Z.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-4.el8_8.3.noarch"
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "edk2: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler()"
    },
    {
      "cve": "CVE-2023-3446",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "discovery_date": "2023-07-24T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2224962"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A vulnerability was found in OpenSSL. This security flaw occurs because the applications that use the DH_check(), DH_check_ex(), or EVP_PKEY_param_check() functions to check a DH key or DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source may lead to a denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "openssl: Excessive time spent checking DH keys and parameters",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The CVE-2023-3446 vulnerability in OpenSSL has been classified as having a low impact due to several factors. Firstly, while the potential for a Denial of Service (DoS) attack exists, it requires specific conditions to be met, notably the use of DH_check(), DH_check_ex(), or EVP_PKEY_param_check() functions with DH keys or parameters obtained from untrusted sources. Secondly, the issue primarily affects the efficiency of key and parameter checks, rather than directly compromising the security or integrity of cryptographic operations. Given these considerations and the absence of widespread exploitation or significant consequences beyond performance degradation, the overall impact of this vulnerability is deemed low rather than moderate.",
          "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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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-3446"
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          "category": "external",
          "summary": "RHBZ#2224962",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2224962"
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          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-3446",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-3446"
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          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-3446",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3446"
        },
        {
          "category": "external",
          "summary": "https://www.openssl.org/news/secadv/20230719.txt",
          "url": "https://www.openssl.org/news/secadv/20230719.txt"
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      ],
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          "date": "2024-03-19T17:30:47+00:00",
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          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:1415"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "openssl: Excessive time spent checking DH keys and parameters"
    },
    {
      "cve": "CVE-2023-45230",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "discovery_date": "2024-01-16T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2258685"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A security flaw was identified in EDK2, the open-source reference implementation of the UEFI specification, involving a buffer overflow vulnerability. This particular weakness enables an unauthorized attacker within the vicinity of the network to transmit a specifically crafted DHCPv6 message. This, in turn, could result in an information disclosure and compromise the availability of the system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "edk2: Buffer overflow in the DHCPv6 client via a long Server ID option",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The buffer overflow vulnerability identified in EDK2 is of significant importance due to its potential impact on system security. As the open-source reference implementation of the UEFI specification, EDK2 plays a crucial role in system boot processes. The discovered flaw allows an unauthorized attacker within the local network to exploit the vulnerability by sending a specially crafted DHCPv6 message, leading to an information leak and compromising system availability. Given the fundamental role of UEFI in system functionality, addressing and patching this issue promptly is crucial to prevent potential security breaches and ensure the integrity of the overall system.",
          "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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      "references": [
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-45230"
        },
        {
          "category": "external",
          "summary": "RHBZ#2258685",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2258685"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-45230",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-45230"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-45230",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45230"
        },
        {
          "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-fc9w-pqjw-8r96",
          "url": "https://github.com/advisories/GHSA-fc9w-pqjw-8r96"
        }
      ],
      "release_date": "2024-01-16T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-03-19T17:30:47+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-8.8.0.Z.EUS:edk2-0:20220126gitbb1bba3d77-4.el8_8.3.src",
            "AppStream-8.8.0.Z.EUS:edk2-aarch64-0:20220126gitbb1bba3d77-4.el8_8.3.noarch",
            "AppStream-8.8.0.Z.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-4.el8_8.3.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:1415"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
            "AppStream-8.8.0.Z.EUS:edk2-0:20220126gitbb1bba3d77-4.el8_8.3.src",
            "AppStream-8.8.0.Z.EUS:edk2-aarch64-0:20220126gitbb1bba3d77-4.el8_8.3.noarch",
            "AppStream-8.8.0.Z.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-4.el8_8.3.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-8.8.0.Z.EUS:edk2-0:20220126gitbb1bba3d77-4.el8_8.3.src",
            "AppStream-8.8.0.Z.EUS:edk2-aarch64-0:20220126gitbb1bba3d77-4.el8_8.3.noarch",
            "AppStream-8.8.0.Z.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-4.el8_8.3.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "edk2: Buffer overflow in the DHCPv6 client via a long Server ID option"
    },
    {
      "cve": "CVE-2023-45234",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "discovery_date": "2024-01-16T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2258697"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A security weakness was identified in EDK2, the open-source reference implementation of the UEFI specification, revealing a buffer overflow vulnerability. This vulnerability enables an unauthorized attacker within proximity on the network to transmit a specifically crafted DHCPv6 Advertise message. As a consequence, it results in the unauthorized disclosure of information and jeopardizes the availability of the system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "edk2: Buffer overflow when processing DNS Servers option in a DHCPv6 Advertise message",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The discovery of a buffer overflow vulnerability in EDK2, the open-source UEFI implementation, is a significant issue due to its potential impact on system security. This flaw allows an attacker to exploit the system\u0027s vulnerability through a specially crafted DHCPv6 Advertise message, leading to unauthorized access, information leakage, and potential compromise of system availability.",
          "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"
        }
      ],
      "product_status": {
        "fixed": [
          "AppStream-8.8.0.Z.EUS:edk2-0:20220126gitbb1bba3d77-4.el8_8.3.src",
          "AppStream-8.8.0.Z.EUS:edk2-aarch64-0:20220126gitbb1bba3d77-4.el8_8.3.noarch",
          "AppStream-8.8.0.Z.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-4.el8_8.3.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-45234"
        },
        {
          "category": "external",
          "summary": "RHBZ#2258697",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2258697"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-45234",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-45234"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-45234",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45234"
        },
        {
          "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-mrjv-p9q7-rxgr",
          "url": "https://github.com/advisories/GHSA-mrjv-p9q7-rxgr"
        }
      ],
      "release_date": "2024-01-16T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-03-19T17:30:47+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-8.8.0.Z.EUS:edk2-0:20220126gitbb1bba3d77-4.el8_8.3.src",
            "AppStream-8.8.0.Z.EUS:edk2-aarch64-0:20220126gitbb1bba3d77-4.el8_8.3.noarch",
            "AppStream-8.8.0.Z.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-4.el8_8.3.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2024:1415"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
          "product_ids": [
            "AppStream-8.8.0.Z.EUS:edk2-0:20220126gitbb1bba3d77-4.el8_8.3.src",
            "AppStream-8.8.0.Z.EUS:edk2-aarch64-0:20220126gitbb1bba3d77-4.el8_8.3.noarch",
            "AppStream-8.8.0.Z.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-4.el8_8.3.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-8.8.0.Z.EUS:edk2-0:20220126gitbb1bba3d77-4.el8_8.3.src",
            "AppStream-8.8.0.Z.EUS:edk2-aarch64-0:20220126gitbb1bba3d77-4.el8_8.3.noarch",
            "AppStream-8.8.0.Z.EUS:edk2-ovmf-0:20220126gitbb1bba3d77-4.el8_8.3.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "edk2: Buffer overflow when processing DNS Servers option in a DHCPv6 Advertise message"
    }
  ]
}


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