{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-47464", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-22T06:20:56.198Z", "datePublished": "2024-05-22T06:23:24.355Z", "dateUpdated": "2026-05-11T13:55:13.840Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:55:13.840Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naudit: fix possible null-pointer dereference in audit_filter_rules\n\nFix possible null-pointer dereference in audit_filter_rules.\n\naudit_filter_rules() error: we previously assumed 'ctx' could be null" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "kernel/auditsc.c" ], "versions": [ { "version": "bf361231c295d92a28ca283ea713f56e93e55796", "lessThan": "d6f451f1f60c58d73038c7c3177066f8f084e2a2", "status": "affected", "versionType": "git" }, { "version": "bf361231c295d92a28ca283ea713f56e93e55796", "lessThan": "16802fa4c33eb1a8efb23f1e93365190e4047d05", "status": "affected", "versionType": "git" }, { "version": "bf361231c295d92a28ca283ea713f56e93e55796", "lessThan": "4e9e46a700201b4c85081fd478c99c692a9aaa0d", "status": "affected", "versionType": "git" }, { "version": "bf361231c295d92a28ca283ea713f56e93e55796", "lessThan": "6e3ee990c90494561921c756481d0e2125d8b895", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "kernel/auditsc.c" ], "versions": [ { "version": "5.3", "status": "affected" }, { "version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.156", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.76", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.14.15", "lessThanOrEqual": "5.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.4.156" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.10.76" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.14.15" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.15" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d6f451f1f60c58d73038c7c3177066f8f084e2a2" }, { "url": "https://git.kernel.org/stable/c/16802fa4c33eb1a8efb23f1e93365190e4047d05" }, { "url": "https://git.kernel.org/stable/c/4e9e46a700201b4c85081fd478c99c692a9aaa0d" }, { "url": "https://git.kernel.org/stable/c/6e3ee990c90494561921c756481d0e2125d8b895" } ], "title": "audit: fix possible null-pointer dereference in audit_filter_rules", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-476", "lang": "en", "description": "CWE-476 NULL Pointer Dereference" } ] } ], "affected": [ { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unaffected", "versions": [ { "version": "bf361231c295", "status": "affected", "lessThan": "d6f451f1f60c", "versionType": "custom" }, { "version": "bf361231c295", "status": "affected", "lessThan": "16802fa4c33e", "versionType": "custom" }, { "version": "bf361231c295", "status": "affected", "lessThan": "4e9e46a70020", "versionType": "custom" }, { "version": "bf361231c295", "status": "affected", "lessThan": "6e3ee990c904", "versionType": "custom" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:5.3:-:*:*:*:*:*:*" ], "defaultStatus": "affected", "versions": [ { "version": "5.3", "status": "affected" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2024-06-17T18:04:07.219306Z", "id": "CVE-2021-47464", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-17T18:04:11.318Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.357Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/d6f451f1f60c58d73038c7c3177066f8f084e2a2", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/16802fa4c33eb1a8efb23f1e93365190e4047d05", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/4e9e46a700201b4c85081fd478c99c692a9aaa0d", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/6e3ee990c90494561921c756481d0e2125d8b895", "tags": [ "x_transferred" ] } ] } ] } }