CVE-2023-40548
Vulnerability from cvelistv5
Published
2024-01-29 14:53
Modified
2024-11-24 14:19
Summary
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:1834
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:1835
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:1873
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:1876
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:1883
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:1902
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:1903
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:1959
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2024:2086
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-40548Vendor Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2241782Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:1834
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:1835
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:1873
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:1876
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:1883
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:1902
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:1903
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:1959
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:2086
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-40548Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2241782Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 7 Unaffected: 0:15.8-1.el7   < *
    cpe:/o:redhat:enterprise_linux:7::client
    cpe:/o:redhat:enterprise_linux:7::server
    cpe:/o:redhat:enterprise_linux:7::workstation
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:15.8-4.el8_9   < *
    cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:15.8-2.el8_2   < *
    cpe:/o:redhat:rhel_tus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service Unaffected: 0:15.8-2.el8_2   < *
    cpe:/o:redhat:rhel_tus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Unaffected: 0:15.8-2.el8_2   < *
    cpe:/o:redhat:rhel_tus:8.2::baseos
    cpe:/o:redhat:rhel_e4s:8.2::baseos
    cpe:/o:redhat:rhel_aus:8.2::baseos
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:15.8-2.el8_4   < *
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_e4s:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:15.8-2.el8_4   < *
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_e4s:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Unaffected: 0:15.8-2.el8_4   < *
    cpe:/o:redhat:rhel_tus:8.4::baseos
    cpe:/o:redhat:rhel_aus:8.4::baseos
    cpe:/o:redhat:rhel_e4s:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:15.8-2.el8_6   < *
    cpe:/o:redhat:rhel_eus:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:15.8-2.el8   < *
    cpe:/a:redhat:rhel_eus:8.8::crb
    cpe:/o:redhat:rhel_eus:8.8::baseos
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:15.8-2.el8   < *
    cpe:/a:redhat:rhel_eus:8.8::crb
    cpe:/o:redhat:rhel_eus:8.8::baseos
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:15.8-4.el9_3   < *
    cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:15.8-3.el9   < *
    cpe:/a:redhat:rhel_eus:9.0::appstream
    cpe:/a:redhat:rhel_eus:9.0::crb
    cpe:/o:redhat:rhel_eus:9.0::baseos
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:15.8-2.el9   < *
    cpe:/a:redhat:rhel_eus:9.0::appstream
    cpe:/a:redhat:rhel_eus:9.0::crb
    cpe:/o:redhat:rhel_eus:9.0::baseos
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support Unaffected: 0:15.8-2.el9   < *
    cpe:/a:redhat:rhel_eus:9.0::appstream
    cpe:/a:redhat:rhel_eus:9.0::crb
    cpe:/o:redhat:rhel_eus:9.0::baseos
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:15.8-3.el9_2   < *
    cpe:/o:redhat:rhel_eus:9.2::baseos
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T18:38:50.361Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "RHSA-2024:1834",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2024:1834"
          },
          {
            "name": "RHSA-2024:1835",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2024:1835"
          },
          {
            "name": "RHSA-2024:1873",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2024:1873"
          },
          {
            "name": "RHSA-2024:1876",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2024:1876"
          },
          {
            "name": "RHSA-2024:1883",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2024:1883"
          },
          {
            "name": "RHSA-2024:1902",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2024:1902"
          },
          {
            "name": "RHSA-2024:1903",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2024:1903"
          },
          {
            "name": "RHSA-2024:1959",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2024:1959"
          },
          {
            "name": "RHSA-2024:2086",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2024:2086"
          },
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2023-40548"
          },
          {
            "name": "RHBZ#2241782",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241782"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7::client",
            "cpe:/o:redhat:enterprise_linux:7::server",
            "cpe:/o:redhat:enterprise_linux:7::workstation"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-3.el7",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7::client",
            "cpe:/o:redhat:enterprise_linux:7::server",
            "cpe:/o:redhat:enterprise_linux:7::workstation"
          ],
          "defaultStatus": "affected",
          "packageName": "shim-signed",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-1.el7",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-4.el8_9",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_tus:8.2::baseos",
            "cpe:/o:redhat:rhel_e4s:8.2::baseos",
            "cpe:/o:redhat:rhel_aus:8.2::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el8_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_tus:8.2::baseos",
            "cpe:/o:redhat:rhel_e4s:8.2::baseos",
            "cpe:/o:redhat:rhel_aus:8.2::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el8_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_tus:8.2::baseos",
            "cpe:/o:redhat:rhel_e4s:8.2::baseos",
            "cpe:/o:redhat:rhel_aus:8.2::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el8_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_tus:8.4::baseos",
            "cpe:/o:redhat:rhel_aus:8.4::baseos",
            "cpe:/o:redhat:rhel_e4s:8.4::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el8_4",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_tus:8.4::baseos",
            "cpe:/o:redhat:rhel_aus:8.4::baseos",
            "cpe:/o:redhat:rhel_e4s:8.4::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el8_4",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_tus:8.4::baseos",
            "cpe:/o:redhat:rhel_aus:8.4::baseos",
            "cpe:/o:redhat:rhel_e4s:8.4::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el8_4",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_eus:8.6::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 8.6 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el8_6",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_eus:8.8::crb",
            "cpe:/o:redhat:rhel_eus:8.8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 8.8 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el8",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_eus:8.8::crb",
            "cpe:/o:redhat:rhel_eus:8.8::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim-unsigned-x64",
          "product": "Red Hat Enterprise Linux 8.8 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el8",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:9::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-4.el9_3",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_eus:9.0::appstream",
            "cpe:/a:redhat:rhel_eus:9.0::crb",
            "cpe:/o:redhat:rhel_eus:9.0::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 9.0 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-3.el9",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_eus:9.0::appstream",
            "cpe:/a:redhat:rhel_eus:9.0::crb",
            "cpe:/o:redhat:rhel_eus:9.0::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim-unsigned-aarch64",
          "product": "Red Hat Enterprise Linux 9.0 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el9",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:rhel_eus:9.0::appstream",
            "cpe:/a:redhat:rhel_eus:9.0::crb",
            "cpe:/o:redhat:rhel_eus:9.0::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim-unsigned-x64",
          "product": "Red Hat Enterprise Linux 9.0 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-2.el9",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:rhel_eus:9.2::baseos"
          ],
          "defaultStatus": "affected",
          "packageName": "shim",
          "product": "Red Hat Enterprise Linux 9.2 Extended Update Support",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:15.8-3.el9_2",
              "versionType": "rpm"
            }
          ]
        }
      ],
      "datePublic": "2023-10-03T00:00:00+00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-24T14:19:01.409Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "RHSA-2024:1834",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2024:1834"
        },
        {
          "name": "RHSA-2024:1835",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2024:1835"
        },
        {
          "name": "RHSA-2024:1873",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2024:1873"
        },
        {
          "name": "RHSA-2024:1876",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2024:1876"
        },
        {
          "name": "RHSA-2024:1883",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2024:1883"
        },
        {
          "name": "RHSA-2024:1902",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2024:1902"
        },
        {
          "name": "RHSA-2024:1903",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2024:1903"
        },
        {
          "name": "RHSA-2024:1959",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2024:1959"
        },
        {
          "name": "RHSA-2024:2086",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2024:2086"
        },
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2023-40548"
        },
        {
          "name": "RHBZ#2241782",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241782"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2023-10-02T00:00:00+00:00",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2023-10-03T00:00:00+00:00",
          "value": "Made public."
        }
      ],
      "title": "Shim: interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems",
      "workarounds": [
        {
          "lang": "en",
          "value": "There\u0027s no available mitigation for this issue."
        }
      ],
      "x_redhatCweChain": "(CWE-190|CWE-787): Integer Overflow or Wraparound or Out-of-bounds Write"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2023-40548",
    "datePublished": "2024-01-29T14:53:44.319Z",
    "dateReserved": "2023-08-15T20:04:15.615Z",
    "dateUpdated": "2024-11-24T14:19:01.409Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-40548\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2024-01-29T15:15:08.893\",\"lastModified\":\"2024-11-21T08:19:41.833\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.\"},{\"lang\":\"es\",\"value\":\"Se encontr\u00f3 un desbordamiento de b\u00fafer en Shim en el sistema de 32 bits. El desbordamiento ocurre debido a una operaci\u00f3n de suma que involucra un valor controlado por el usuario analizado del binario PE que utiliza Shim. Este valor se utiliza adem\u00e1s para operaciones de asignaci\u00f3n de memoria, lo que provoca un desbordamiento de b\u00fafer en la regi\u00f3n Heap de la memoria. Esta falla causa da\u00f1os en la memoria y puede provocar fallas o problemas de integridad de los datos durante la fase de inicio.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.4,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.4,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.4,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.4,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-190\"},{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"15.8\",\"matchCriteriaId\":\"01639865-3664-4034-BCFB-F4E09AF37F28\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:shim:15.8:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"BF11AEF9-B742-46DC-94D2-6160B93767BD\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646\"}]}]}],\"references\":[{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1834\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1835\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1873\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1876\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1883\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1902\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1903\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1959\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:2086\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/security/cve/CVE-2023-40548\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2241782\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1834\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1835\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1873\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1876\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1883\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1902\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1903\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:1959\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2024:2086\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/security/cve/CVE-2023-40548\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2241782\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Vendor Advisory\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.