{"api_version":"1","generated_at":"2026-07-23T18:59:05+00:00","cve":"CVE-2021-3673","urls":{"html":"https://cve.report/CVE-2021-3673","api":"https://cve.report/api/cve/CVE-2021-3673.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-3673","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-3673"},"summary":{"title":"CVE-2021-3673","description":"A vulnerability was found in Radare2 in version 5.3.1. Improper input validation when reading a crafted LE binary can lead to resource exhaustion and DoS.","state":"PUBLIC","assigner":"patrick@puiterwijk.org","published_at":"2021-08-02 19:15:00","updated_at":"2023-11-07 03:38:00"},"problem_types":["CWE-252"],"metrics":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIARALLVVY2362AYFSFULTZKIW6QO5R5/","name":"FEDORA-2021-c1a0dc39b4","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 35 Update: radare2-5.4.0-1.fc35 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKGIB52R4XPCPNEW6GF56EHW7ST24IJU/","name":"FEDORA-2022-ba3248e596","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 34 Update: radare2-5.6.0-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NFQPEPMLAOQNGZG5OHSPZBNONGG4DDJO/","name":"FEDORA-2021-55198e6804","refsource":"","tags":[],"title":"[SECURITY] Fedora 33 Update: iaito-5.3.1-3.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIARALLVVY2362AYFSFULTZKIW6QO5R5/","name":"FEDORA-2021-c1a0dc39b4","refsource":"","tags":[],"title":"[SECURITY] Fedora 35 Update: radare2-5.4.0-1.fc35 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XGOU2EFE7YK2YDRNFV6QFUWW2SL2GGQA/","name":"FEDORA-2021-d206891379","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 34 Update: radare2-5.4.0-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IQIRJ72UALGMSWH6MYPVJQQLXFGZ23RS/","name":"FEDORA-2022-3fc85cd09c","refsource":"","tags":[],"title":"[SECURITY] Fedora 35 Update: radare2-5.6.0-1.fc35 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1989130","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1989130","refsource":"MISC","tags":[],"title":"1989130 – (CVE-2021-3673) CVE-2021-3673 radare2: improper input validation can lead to resource exhaustion when reading LE binary","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NFQPEPMLAOQNGZG5OHSPZBNONGG4DDJO/","name":"FEDORA-2021-55198e6804","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 33 Update: iaito-5.3.1-3.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IQIRJ72UALGMSWH6MYPVJQQLXFGZ23RS/","name":"FEDORA-2022-3fc85cd09c","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 35 Update: radare2-5.6.0-1.fc35 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SKGIB52R4XPCPNEW6GF56EHW7ST24IJU/","name":"FEDORA-2022-ba3248e596","refsource":"","tags":[],"title":"[SECURITY] Fedora 34 Update: radare2-5.6.0-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XGOU2EFE7YK2YDRNFV6QFUWW2SL2GGQA/","name":"FEDORA-2021-d206891379","refsource":"","tags":[],"title":"[SECURITY] Fedora 34 Update: radare2-5.4.0-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3673","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3673","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"3673","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"33","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3673","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"34","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3673","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"35","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"3673","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"radare","cpe5":"radare2","cpe6":"5.3.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-3673","qid":"281938","title":"Fedora Security Update for iaito (FEDORA-2021-55198e6804)"},{"cve":"CVE-2021-3673","qid":"281939","title":"Fedora Security Update for iaito (FEDORA-2021-d206891379)"},{"cve":"CVE-2021-3673","qid":"282420","title":"Fedora Security Update for radare2 (FEDORA-2022-3fc85cd09c)"},{"cve":"CVE-2021-3673","qid":"282421","title":"Fedora Security Update for radare2 (FEDORA-2022-ba3248e596)"},{"cve":"CVE-2021-3673","qid":"503249","title":"Alpine Linux Security Update for radare2"},{"cve":"CVE-2021-3673","qid":"506222","title":"Alpine Linux Security Update for radare2"}]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2021-3673","ASSIGNER":"patrick@puiterwijk.org","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"radare2","version":{"version_data":[{"version_value":"Radare2 version 5.3.1"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-20->CWE-400"}]}]},"references":{"reference_data":[{"refsource":"MISC","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1989130","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1989130"},{"refsource":"FEDORA","name":"FEDORA-2021-c1a0dc39b4","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIARALLVVY2362AYFSFULTZKIW6QO5R5/"},{"refsource":"FEDORA","name":"FEDORA-2021-55198e6804","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NFQPEPMLAOQNGZG5OHSPZBNONGG4DDJO/"},{"refsource":"FEDORA","name":"FEDORA-2021-d206891379","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XGOU2EFE7YK2YDRNFV6QFUWW2SL2GGQA/"},{"refsource":"FEDORA","name":"FEDORA-2022-ba3248e596","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SKGIB52R4XPCPNEW6GF56EHW7ST24IJU/"},{"refsource":"FEDORA","name":"FEDORA-2022-3fc85cd09c","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IQIRJ72UALGMSWH6MYPVJQQLXFGZ23RS/"}]},"description":{"description_data":[{"lang":"eng","value":"A vulnerability was found in Radare2 in version 5.3.1. Improper input validation when reading a crafted LE binary can lead to resource exhaustion and DoS."}]}},"nvd":{"publishedDate":"2021-08-02 19:15:00","lastModifiedDate":"2023-11-07 03:38:00","problem_types":["CWE-252"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:radare:radare2:5.3.1:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"3673","Ordinal":"213437","Title":"CVE-2021-3673","CVE":"CVE-2021-3673","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"3673","Ordinal":"1","NoteData":"A vulnerability was found in Radare2 in version 5.3.1. Improper input validation when reading a crafted LE binary can lead to resource exhaustion and DoS.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"3673","Ordinal":"2","NoteData":"2021-08-02","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"3673","Ordinal":"3","NoteData":"2021-09-28","Type":"Other","Title":"Modified"}]}}}