{ "dataType": "CVE_RECORD", "cveMetadata": { "cveId": "CVE-2023-40546", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2023-08-15T20:04:15.615Z", "datePublished": "2024-01-29T16:29:26.258Z", "dateUpdated": "2025-11-20T19:53:32.512Z" }, "containers": { "cna": { "title": "Shim: out-of-bounds read printing error messages", "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": "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" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances." } ], "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::client", "cpe:/o:redhat:enterprise_linux:7::server", "cpe:/o:redhat:enterprise_linux:7::workstation" ] }, { "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::client", "cpe:/o:redhat:enterprise_linux:7::server", "cpe:/o:redhat:enterprise_linux:7::workstation" ] }, { "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_aus:8.2::baseos", "cpe:/o:redhat:rhel_e4s: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_aus:8.2::baseos", "cpe:/o:redhat:rhel_e4s: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_aus:8.2::baseos", "cpe:/o:redhat:rhel_e4s: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_tus:8.4::baseos", "cpe:/o:redhat:rhel_e4s: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_tus:8.4::baseos", "cpe:/o:redhat:rhel_e4s:8.4::baseos", "cpe:/o:redhat:rhel_aus:8.4::baseos" ] }, { "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 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"defaultStatus": "affected", "versions": [ { "version": "0:15.8-2.el8", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/o:redhat:rhel_eus:8.8::baseos", "cpe:/a:redhat:rhel_eus:8.8::crb" ] }, { "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:/o:redhat:rhel_eus:8.8::baseos", "cpe:/a:redhat:rhel_eus:8.8::crb" ] }, { "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": [ 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