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"descriptions": [{"lang": "en", "value": "Heap-based buffer overflow in smtp_in.c for Exim 3 (exim3) before 3.36 and Exim 4 (exim4) before 4.21 may allow remote attackers to execute arbitrary code via an invalid (1) HELO or (2) EHLO argument with a large number of spaces followed by a NULL character and a newline, which is not properly trimmed before the \"(no argument given)\" string is appended to the buffer."}], "id": "CVE-2003-0743", "lastModified": "2025-04-03T01:03:51.193", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": true, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2003-10-20T04:00:00.000", "references": [{"source": "cve@mitre.org", "url": "http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000735"}, {"source": "cve@mitre.org", "url": "http://marc.info/?l=bugtraq&m=106252015820395&w=2"}, {"source": "cve@mitre.org", "url": "http://marc.info/?l=vuln-dev&m=106264740820334&w=2"}, {"source": "cve@mitre.org", "url": "http://packages.debian.org/changelogs/pool/main/e/exim/exim_3.36-13/changelog"}, {"source": "cve@mitre.org", "url": "http://packages.debian.org/changelogs/pool/main/e/exim4/exim4_4.34-10/changelog"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.debian.org/security/2003/dsa-376"}, {"source": "cve@mitre.org", "url": "http://www.exim.org/pipermail/exim-announce/2003q3/000094.html"}, {"source": "cve@mitre.org", "url": "http://www.exim.org/pipermail/exim-users/Week-of-Mon-20030811/057720.html"}, {"source": "cve@mitre.org", "url": 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