CVE-2012-5671

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:*", "matchCriteriaId": "452E9C94-B7FF-40A9-A7F9-FC38824F6135", "vulnerable": true}, {"criteria": "cpe:2.3:a:exim:exim:4.71:*:*:*:*:*:*:*", "matchCriteriaId": "A8EB3709-D51F-46D1-99B8-CFB4C2275077", "vulnerable": true}, {"criteria": "cpe:2.3:a:exim:exim:4.72:*:*:*:*:*:*:*", "matchCriteriaId": "CBDB2156-072B-4392-9DC8-266FF1B8C7A4", "vulnerable": true}, {"criteria": "cpe:2.3:a:exim:exim:4.73:*:*:*:*:*:*:*", "matchCriteriaId": "02F8A053-4578-4C45-A193-C188E45ED010", "vulnerable": true}, {"criteria": "cpe:2.3:a:exim:exim:4.74:*:*:*:*:*:*:*", "matchCriteriaId": "A5DC11D6-F67F-40A8-B8BF-2E76DD2F9091", "vulnerable": true}, {"criteria": "cpe:2.3:a:exim:exim:4.75:*:*:*:*:*:*:*", "matchCriteriaId": "5854CAF2-1587-4B91-9F9B-E2C57C22C426", "vulnerable": true}, {"criteria": "cpe:2.3:a:exim:exim:4.76:*:*:*:*:*:*:*", "matchCriteriaId": "24D504C3-139D-4627-BD72-B6B46B360CE6", "vulnerable": true}, {"criteria": "cpe:2.3:a:exim:exim:4.77:*:*:*:*:*:*:*", "matchCriteriaId": "FF796BE5-380B-4DBF-A4FF-4CDF98B69C97", "vulnerable": true}, {"criteria": "cpe:2.3:a:exim:exim:4.80:*:*:*:*:*:*:*", "matchCriteriaId": "6526E201-30CC-4C12-B2B4-06EBA663D39F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to \"warn control = dkim_disable_verify,\" allows remote attackers to execute arbitrary code via an email from a malicious DNS server."}, {"lang": "es", "value": "Desbordamiento de b\u00fafer basado en memoria din\u00e1mica en la funci\u00f3n dkim_exim_query_dns_txt en dkim.c en Exim v4.70 hasta v4.80, cuando el soporte DKIM est\u00e1 habilitado y acl_smtp_connect y acl_smtp_rcpt no est\u00e1n establecidos en \"warn control = dkim_disable_verify\", permite a atacantes remotos ejecutar c\u00f3digo arbitrario a trav\u00e9s de un correo electr\u00f3nico de un servidor DNS malicioso."}], "id": "CVE-2012-5671", "lastModified": "2026-06-16T23:47:13.503", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-10-31T16:55:06.577", "references": 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"https://exchange.xforce.ibmcloud.com/vulnerabilities/79615"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.exim.org/lurker/message/20121026.080330.74b9147b.en.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "exim: Heap-buffer overflow in DNS decode logic used for DKIM", "id": "869953", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=869953"}, "csaw": false, "cvss": {"cvss_base_score": "7.5", "cvss_scoring_vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "status": "draft"}, "cwe": "CWE-122", "details": ["Heap-based buffer overflow in the dkim_exim_query_dns_txt function in dkim.c in Exim 4.70 through 4.80, when DKIM support is enabled and acl_smtp_connect and acl_smtp_rcpt are not set to \"warn control = dkim_disable_verify,\" allows remote attackers to execute arbitrary code via an email from a malicious DNS server."], "name": "CVE-2012-5671", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "exim", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2012-10-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-5671\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-5671"], "statement": "Not Vulnerable. This issue does not affect the version of exim as shipped with Red Hat Enterprise Linux 5.", "threat_severity": "Critical"}

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