rhsa-2023_6919
Vulnerability from csaf_redhat
Published
2023-11-14 16:13
Modified
2024-12-02 08:22
Summary
Red Hat Security Advisory: edk2 security and bug fix update

Notes

Topic
An update for edk2 is now available for Red Hat Enterprise Linux 8. Red 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.
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: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler() (CVE-2019-14560) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.9 Release Notes linked from 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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{
  "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 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: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler() (CVE-2019-14560)\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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.9 Release Notes linked from 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"
      }
    ],
    "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/RHSA-2023:6919",
        "url": "https://access.redhat.com/errata/RHSA-2023:6919"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#moderate",
        "url": "https://access.redhat.com/security/updates/classification/#moderate"
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      {
        "category": "external",
        "summary": "https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.9_release_notes/index",
        "url": "https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.9_release_notes/index"
      },
      {
        "category": "external",
        "summary": "1858038",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1858038"
      },
      {
        "category": "external",
        "summary": "2150267",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2150267"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_6919.json"
      }
    ],
    "title": "Red Hat Security Advisory: edk2 security and bug fix update",
    "tracking": {
      "current_release_date": "2024-12-02T08:22:15+00:00",
      "generator": {
        "date": "2024-12-02T08:22:15+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2023:6919",
      "initial_release_date": "2023-11-14T16:13:48+00:00",
      "revision_history": [
        {
          "date": "2023-11-14T16:13:48+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2023-11-14T16:13:48+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-12-02T08:22:15+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 AppStream (v. 8)",
                "product": {
                  "name": "Red Hat Enterprise Linux AppStream (v. 8)",
                  "product_id": "AppStream-8.9.0.GA",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:enterprise_linux:8::appstream"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "edk2-0:20220126gitbb1bba3d77-6.el8.src",
                "product": {
                  "name": "edk2-0:20220126gitbb1bba3d77-6.el8.src",
                  "product_id": "edk2-0:20220126gitbb1bba3d77-6.el8.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/edk2@20220126gitbb1bba3d77-6.el8?arch=src"
                  }
                }
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            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
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                "name": "edk2-aarch64-0:20220126gitbb1bba3d77-6.el8.noarch",
                "product": {
                  "name": "edk2-aarch64-0:20220126gitbb1bba3d77-6.el8.noarch",
                  "product_id": "edk2-aarch64-0:20220126gitbb1bba3d77-6.el8.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/edk2-aarch64@20220126gitbb1bba3d77-6.el8?arch=noarch"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "edk2-ovmf-0:20220126gitbb1bba3d77-6.el8.noarch",
                "product": {
                  "name": "edk2-ovmf-0:20220126gitbb1bba3d77-6.el8.noarch",
                  "product_id": "edk2-ovmf-0:20220126gitbb1bba3d77-6.el8.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/edk2-ovmf@20220126gitbb1bba3d77-6.el8?arch=noarch"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "edk2-0:20220126gitbb1bba3d77-6.el8.src as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.9.0.GA:edk2-0:20220126gitbb1bba3d77-6.el8.src"
        },
        "product_reference": "edk2-0:20220126gitbb1bba3d77-6.el8.src",
        "relates_to_product_reference": "AppStream-8.9.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "edk2-aarch64-0:20220126gitbb1bba3d77-6.el8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.9.0.GA:edk2-aarch64-0:20220126gitbb1bba3d77-6.el8.noarch"
        },
        "product_reference": "edk2-aarch64-0:20220126gitbb1bba3d77-6.el8.noarch",
        "relates_to_product_reference": "AppStream-8.9.0.GA"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "edk2-ovmf-0:20220126gitbb1bba3d77-6.el8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 8)",
          "product_id": "AppStream-8.9.0.GA:edk2-ovmf-0:20220126gitbb1bba3d77-6.el8.noarch"
        },
        "product_reference": "edk2-ovmf-0:20220126gitbb1bba3d77-6.el8.noarch",
        "relates_to_product_reference": "AppStream-8.9.0.GA"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2019-14560",
      "cwe": {
        "id": "CWE-252",
        "name": "Unchecked Return Value"
      },
      "discovery_date": "2020-07-16T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1858038"
        }
      ],
      "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"
        }
      ],
      "product_status": {
        "fixed": [
          "AppStream-8.9.0.GA:edk2-0:20220126gitbb1bba3d77-6.el8.src",
          "AppStream-8.9.0.GA:edk2-aarch64-0:20220126gitbb1bba3d77-6.el8.noarch",
          "AppStream-8.9.0.GA:edk2-ovmf-0:20220126gitbb1bba3d77-6.el8.noarch"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2019-14560"
        },
        {
          "category": "external",
          "summary": "RHBZ#1858038",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1858038"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2019-14560",
          "url": "https://www.cve.org/CVERecord?id=CVE-2019-14560"
        },
        {
          "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": [
        {
          "category": "vendor_fix",
          "date": "2023-11-14T16:13:48+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-8.9.0.GA:edk2-0:20220126gitbb1bba3d77-6.el8.src",
            "AppStream-8.9.0.GA:edk2-aarch64-0:20220126gitbb1bba3d77-6.el8.noarch",
            "AppStream-8.9.0.GA:edk2-ovmf-0:20220126gitbb1bba3d77-6.el8.noarch"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2023:6919"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 6.1,
            "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"
          },
          "products": [
            "AppStream-8.9.0.GA:edk2-0:20220126gitbb1bba3d77-6.el8.src",
            "AppStream-8.9.0.GA:edk2-aarch64-0:20220126gitbb1bba3d77-6.el8.noarch",
            "AppStream-8.9.0.GA:edk2-ovmf-0:20220126gitbb1bba3d77-6.el8.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "edk2: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler()"
    }
  ]
}


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