CVE-2023-40549

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This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo de lectura fuera de los l\u00edmites en Shim debido a la falta de una verificaci\u00f3n de l\u00edmites adecuada durante la carga de un binario PE. Esta falla permite a un atacante cargar un binario PE manipulado, lo que desencadena el problema y bloquea Shim, lo que resulta en una denegaci\u00f3n de servicio."}], "id": "CVE-2023-40549", "lastModified": "2026-06-17T06:18:25.593", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-40549", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-03-11T19:17:30.752609Z", "version": "2.0.3"}}]}, "published": "2024-01-29T17:15:08.580", "references": [{"source": "secalert@redhat.com", "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", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2023-40549"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241797"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "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", "tags": ["Vendor Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2023-40549"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241797"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:1959", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "shim-0:15.8-3.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2024-04-23T00:00:00Z"}, {"advisory": "RHSA-2024:1959", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "shim-signed-0:15.8-1.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2024-04-23T00:00:00Z"}, {"advisory": "RHSA-2024:1902", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "shim-0:15.8-4.el8_9", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-04-18T00:00:00Z"}, {"advisory": "RHSA-2024:1834", "cpe": "cpe:/o:redhat:rhel_aus:8.2", "package": "shim-0:15.8-2.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2024-04-16T00:00:00Z"}, {"advisory": "RHSA-2024:1834", "cpe": "cpe:/o:redhat:rhel_tus:8.2", "package": "shim-0:15.8-2.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2024-04-16T00:00:00Z"}, {"advisory": "RHSA-2024:1834", "cpe": "cpe:/o:redhat:rhel_e4s:8.2", "package": "shim-0:15.8-2.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2024-04-16T00:00:00Z"}, {"advisory": "RHSA-2024:1873", "cpe": "cpe:/o:redhat:rhel_aus:8.4", "package": "shim-0:15.8-2.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2024-04-18T00:00:00Z"}, {"advisory": "RHSA-2024:1873", "cpe": "cpe:/o:redhat:rhel_tus:8.4", "package": "shim-0:15.8-2.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2024-04-18T00:00:00Z"}, {"advisory": "RHSA-2024:1873", "cpe": "cpe:/o:redhat:rhel_e4s:8.4", "package": "shim-0:15.8-2.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2024-04-18T00:00:00Z"}, {"advisory": "RHSA-2024:2086", "cpe": "cpe:/o:redhat:rhel_eus:8.6", "package": "shim-0:15.8-2.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2024-04-29T00:00:00Z"}, {"advisory": "RHSA-2024:1883", "cpe": "cpe:/o:redhat:rhel_eus:8.8", "package": "shim-0:15.8-2.el8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-04-18T00:00:00Z"}, {"advisory": "RHSA-2024:1883", "cpe": "cpe:/o:redhat:rhel_eus:8.8", "package": "shim-unsigned-x64-0:15.8-2.el8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-04-18T00:00:00Z"}, {"advisory": "RHSA-2024:1903", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "shim-0:15.8-4.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-18T00:00:00Z"}, {"advisory": "RHSA-2024:1835", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "shim-0:15.8-3.el9", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2024-04-16T00:00:00Z"}, {"advisory": "RHSA-2024:1835", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "shim-unsigned-aarch64-0:15.8-2.el9", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2024-04-16T00:00:00Z"}, {"advisory": "RHSA-2024:1835", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "shim-unsigned-x64-0:15.8-2.el9", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2024-04-16T00:00:00Z"}, {"advisory": "RHSA-2024:1876", "cpe": "cpe:/o:redhat:rhel_eus:9.2", "package": "shim-0:15.8-3.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-04-18T00:00:00Z"}], "bugzilla": {"description": "shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file", "id": "2241797", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241797"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.2", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-125", "details": ["An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.", "An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service."], "mitigation": {"lang": "en:us", "value": "There's no available mitigation for this issue."}, "name": "CVE-2023-40549", "public_date": "2024-01-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-40549\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-40549"], "threat_severity": "Moderate"}

{}