{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2023-40550", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2023-08-15T20:04:15.615Z", "datePublished": "2024-01-29T16:29:23.050Z", "dateUpdated": "2025-05-29T15:08:55.470Z"}, "containers": {"cna": {"title": "Shim: out-of-bound read in verify_buffer_sbat()", "metrics": [{"other": {"content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-3.el7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux:7::server", "cpe:/o:redhat:enterprise_linux:7::workstation", "cpe:/o:redhat:enterprise_linux:7::client"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim-signed", "defaultStatus": "affected", "versions": [{"version": "0:15.8-1.el7", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux:7::server", "cpe:/o:redhat:enterprise_linux:7::workstation", "cpe:/o:redhat:enterprise_linux:7::client"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-4.el8_9", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux:8::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el8_2", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "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"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el8_2", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "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"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el8_2", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "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"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el8_4", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:rhel_e4s:8.4::baseos", "cpe:/o:redhat:rhel_tus:8.4::baseos", "cpe:/o:redhat:rhel_aus:8.4::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el8_4", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:rhel_e4s:8.4::baseos", "cpe:/o:redhat:rhel_tus:8.4::baseos", "cpe:/o:redhat:rhel_aus:8.4::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el8_4", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:rhel_e4s:8.4::baseos", "cpe:/o:redhat:rhel_tus:8.4::baseos", "cpe:/o:redhat:rhel_aus:8.4::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el8_6", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:rhel_eus:8.6::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el8", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_eus:8.8::crb", "cpe:/o:redhat:rhel_eus:8.8::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim-unsigned-x64", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el8", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhel_eus:8.8::crb", "cpe:/o:redhat:rhel_eus:8.8::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-4.el9_3", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:enterprise_linux:9::baseos"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-3.el9", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:rhel_eus:9.0::baseos", "cpe:/a:redhat:rhel_eus:9.0::crb", "cpe:/a:redhat:rhel_eus:9.0::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim-unsigned-aarch64", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el9", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:rhel_eus:9.0::baseos", "cpe:/a:redhat:rhel_eus:9.0::crb", "cpe:/a:redhat:rhel_eus:9.0::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim-unsigned-x64", "defaultStatus": "affected", "versions": [{"version": "0:15.8-2.el9", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:rhel_eus:9.0::baseos", "cpe:/a:redhat:rhel_eus:9.0::crb", "cpe:/a:redhat:rhel_eus:9.0::appstream"]}, {"vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.2 Extended Update Support", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "shim", "defaultStatus": "affected", "versions": [{"version": "0:15.8-3.el9_2", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/o:redhat:rhel_eus:9.2::baseos"]}], "references": [{"url": "https://access.redhat.com/errata/RHSA-2024:1834", "name": "RHSA-2024:1834", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1835", "name": "RHSA-2024:1835", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1873", "name": "RHSA-2024:1873", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1876", "name": "RHSA-2024:1876", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1883", "name": "RHSA-2024:1883", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1902", "name": "RHSA-2024:1902", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1903", "name": "RHSA-2024:1903", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1959", "name": "RHSA-2024:1959", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:2086", "name": "RHSA-2024:2086", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2023-40550", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915", "name": "RHBZ#2259915", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2024-01-23T00:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "description": "Out-of-bounds Read", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-125: Out-of-bounds Read", "timeline": [{"lang": "en", "time": "2024-01-23T00:00:00+00:00", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2024-01-23T00:00:00+00:00", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2024-11-24T14:19:14.562Z"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T18:38:50.592Z"}, "title": "CVE Program Container", "references": [{"url": "https://access.redhat.com/errata/RHSA-2024:1834", "name": "RHSA-2024:1834", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1835", "name": "RHSA-2024:1835", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1873", "name": "RHSA-2024:1873", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1876", "name": "RHSA-2024:1876", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1883", "name": "RHSA-2024:1883", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1902", "name": "RHSA-2024:1902", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1903", "name": "RHSA-2024:1903", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1959", "name": "RHSA-2024:1959", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:2086", "name": "RHSA-2024:2086", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/security/cve/CVE-2023-40550", "tags": ["vdb-entry", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915", "name": "RHBZ#2259915", "tags": ["issue-tracking", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-05-08T19:08:55.327047Z", "id": "CVE-2023-40550", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-29T15:08:55.470Z"}}]}, "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://access.redhat.com/errata/RHSA-2024:1834", "name": "RHSA-2024:1834", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1835", "name": "RHSA-2024:1835", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1873", "name": "RHSA-2024:1873", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1876", "name": "RHSA-2024:1876", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1883", "name": "RHSA-2024:1883", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1902", "name": "RHSA-2024:1902", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1903", "name": "RHSA-2024:1903", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1959", "name": "RHSA-2024:1959", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:2086", "name": "RHSA-2024:2086", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/security/cve/CVE-2023-40550", "tags": ["vdb-entry", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915", "name": "RHBZ#2259915", "tags": ["issue-tracking", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/05/msg00009.html", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T18:38:50.592Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-40550", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-05-08T19:08:55.327047Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-08T19:08:56.961Z"}}], "cna": {"title": "Shim: out-of-bound read in verify_buffer_sbat()", "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"cpes": ["cpe:/o:redhat:enterprise_linux:7::server", "cpe:/o:redhat:enterprise_linux:7::workstation", "cpe:/o:redhat:enterprise_linux:7::client"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "versions": [{"status": "unaffected", "version": "0:15.8-3.el7", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7::server", "cpe:/o:redhat:enterprise_linux:7::workstation", "cpe:/o:redhat:enterprise_linux:7::client"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "versions": [{"status": "unaffected", "version": "0:15.8-1.el7", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim-signed", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:15.8-4.el8_9", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"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"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "versions": [{"status": "unaffected", "version": "0:15.8-2.el8_2", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"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"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:15.8-2.el8_2", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"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"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:15.8-2.el8_2", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_e4s:8.4::baseos", "cpe:/o:redhat:rhel_tus:8.4::baseos", "cpe:/o:redhat:rhel_aus:8.4::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "versions": [{"status": "unaffected", "version": "0:15.8-2.el8_4", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_e4s:8.4::baseos", "cpe:/o:redhat:rhel_tus:8.4::baseos", "cpe:/o:redhat:rhel_aus:8.4::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "versions": [{"status": "unaffected", "version": "0:15.8-2.el8_4", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_e4s:8.4::baseos", "cpe:/o:redhat:rhel_tus:8.4::baseos", "cpe:/o:redhat:rhel_aus:8.4::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:15.8-2.el8_4", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_eus:8.6::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:15.8-2.el8_6", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:8.8::crb", "cpe:/o:redhat:rhel_eus:8.8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:15.8-2.el8", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:8.8::crb", "cpe:/o:redhat:rhel_eus:8.8::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8.8 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:15.8-2.el8", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim-unsigned-x64", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:9::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:15.8-4.el9_3", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_eus:9.0::baseos", "cpe:/a:redhat:rhel_eus:9.0::crb", "cpe:/a:redhat:rhel_eus:9.0::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:15.8-3.el9", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_eus:9.0::baseos", "cpe:/a:redhat:rhel_eus:9.0::crb", "cpe:/a:redhat:rhel_eus:9.0::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:15.8-2.el9", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim-unsigned-aarch64", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_eus:9.0::baseos", "cpe:/a:redhat:rhel_eus:9.0::crb", "cpe:/a:redhat:rhel_eus:9.0::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:15.8-2.el9", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim-unsigned-x64", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:rhel_eus:9.2::baseos"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.2 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:15.8-3.el9_2", "lessThan": "*", "versionType": "rpm"}], "packageName": "shim", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}], "timeline": [{"lang": "en", "time": "2024-01-23T00:00:00+00:00", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2024-01-23T00:00:00+00:00", "value": "Made public."}], "datePublic": "2024-01-23T00:00:00.000Z", "references": [{"url": "https://access.redhat.com/errata/RHSA-2024:1834", "name": "RHSA-2024:1834", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1835", "name": "RHSA-2024:1835", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1873", "name": "RHSA-2024:1873", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1876", "name": "RHSA-2024:1876", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1883", "name": "RHSA-2024:1883", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1902", "name": "RHSA-2024:1902", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1903", "name": "RHSA-2024:1903", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:1959", "name": "RHSA-2024:1959", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2024:2086", "name": "RHSA-2024:2086", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2023-40550", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915", "name": "RHBZ#2259915", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "descriptions": [{"lang": "en", "value": "An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "Out-of-bounds Read"}]}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2024-11-24T14:19:14.562Z"}, "x_redhatCweChain": "CWE-125: Out-of-bounds Read"}}, "cveMetadata": {"cveId": "CVE-2023-40550", "state": "PUBLISHED", "dateUpdated": "2025-05-29T15:08:55.470Z", "dateReserved": "2023-08-15T20:04:15.615Z", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "datePublished": "2024-01-29T16:29:23.050Z", "assignerShortName": "redhat"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*", "matchCriteriaId": "01639865-3664-4034-BCFB-F4E09AF37F28", "versionEndExcluding": "15.8", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*", "matchCriteriaId": "B8EDB836-4E6A-4B71-B9B2-AA3E03E0F646", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase."}, {"lang": "es", "value": "Se encontr\u00f3 un fallo de lectura fuera de los l\u00edmites en Shim cuando intent\u00f3 validar la informaci\u00f3n SBAT. Este problema puede exponer datos confidenciales durante la fase de inicio del sistema."}], "id": "CVE-2023-40550", "lastModified": "2024-11-21T08:19:42.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-01-29T17:15:08.773", "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-2023-40550"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915"}, {"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-2023-40550"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915"}, {"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-bound read in verify_buffer_sbat()", "id": "2259915", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-125", "details": ["An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.", "An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase."], "name": "CVE-2023-40550", "public_date": "2024-01-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-40550\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-40550"], "threat_severity": "Moderate"}