{"api_version":"1","generated_at":"2026-07-23T10:11:55+00:00","cve":"CVE-2003-0540","urls":{"html":"https://cve.report/CVE-2003-0540","api":"https://cve.report/api/cve/CVE-2003-0540.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2003-0540","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2003-0540"},"summary":{"title":"CVE-2003-0540","description":"The address parser code in Postfix 1.1.12 and earlier allows remote attackers to cause a denial of service (lock) via (1) a malformed envelope address to a local host that would generate a bounce and contains the \".!\" string in the MAIL FROM or Errors-To headers, which causes nqmgr to lock up, or (2) via a valid MAIL FROM with a RCPT TO containing a \".!\" string, which causes an instance of the SMTP listener to lock up.","state":"PUBLISHED","assigner":"mitre","published_at":"2003-08-27 04:00:00","updated_at":"2025-04-03 01:03:51"},"problem_types":["NVD-CWE-Other","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"5","severity":"","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://secunia.com/advisories/9433","name":"http://secunia.com/advisories/9433","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Secunia - Advisories - Postfix DoS and Bounce Scan Vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.novell.com/linux/security/advisories/2003_033_postfix.html","name":"http://www.novell.com/linux/security/advisories/2003_033_postfix.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"NOVELL: Broken Link - 404 Error Pages","mime":"text/html","httpstatus":"404","archivestatus":"200"},{"url":"http://www.redhat.com/support/errata/RHSA-2003-251.html","name":"http://www.redhat.com/support/errata/RHSA-2003-251.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"title":"redhat.com | Red Hat Support","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://marc.info/?l=bugtraq&m=106001525130257&w=2","name":"http://marc.info/?l=bugtraq&m=106001525130257&w=2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"'Postfix 1.1.12 remote DoS / Postfix 1.1.11 bounce scanning' - MARC","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2003:081","name":"http://www.mandriva.com/security/advisories?name=MDKSA-2003:081","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Advisories - Mandriva","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000717","name":"http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000717","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Home - Conectiva","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://marc.info/?l=bugtraq&m=106029188614704&w=2","name":"http://marc.info/?l=bugtraq&m=106029188614704&w=2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"'TSLSA-2003-0029 - postfix' - MARC","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/8333","name":"http://www.securityfocus.com/bid/8333","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Multiple Postfix Denial of Service Vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"http://www.kb.cert.org/vuls/id/895508","name":"http://www.kb.cert.org/vuls/id/895508","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["US Government Resource"],"title":"US-CERT Vulnerability Note VU#895508","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-August/007693.html","name":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-August/007693.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"[Full-Disclosure] Mailing List Charter","mime":"text/html","httpstatus":"404","archivestatus":"404"},{"url":"http://www.debian.org/security/2003/dsa-363","name":"http://www.debian.org/security/2003/dsa-363","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"],"title":"Debian -- Security Information -- DSA-363-1 postfix","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.linuxsecurity.com/advisories/engarde_advisory-3517.html","name":"http://www.linuxsecurity.com/advisories/engarde_advisory-3517.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"LinuxSecurity.com: EnGarde: 'postfix' remote denial-of-service","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A544","name":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A544","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Repository  /  Oval Repository","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2003-0540","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2003-0540","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2003","cve_id":"540","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"conectiva","cpe5":"linux","cpe6":"7.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2003","cve_id":"540","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"conectiva","cpe5":"linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2003","cve_id":"540","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"wietse_venema","cpe5":"postfix","cpe6":"1.0.21","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2003","cve_id":"540","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"wietse_venema","cpe5":"postfix","cpe6":"1.1.11","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2003","cve_id":"540","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"wietse_venema","cpe5":"postfix","cpe6":"1.1.12","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2003","cve_id":"540","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"wietse_venema","cpe5":"postfix","cpe6":"1999-09-06","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2003","cve_id":"540","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"wietse_venema","cpe5":"postfix","cpe6":"1999-12-31","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2003","cve_id":"540","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"wietse_venema","cpe5":"postfix","cpe6":"2000-02-28","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2003","cve_id":"540","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"wietse_venema","cpe5":"postfix","cpe6":"2001-11-15","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-08T01:58:10.982Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"CLA-2003:717","tags":["vendor-advisory","x_refsource_CONECTIVA","x_transferred"],"url":"http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000717"},{"name":"8333","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/8333"},{"name":"20030804 Postfix 1.1.12 remote DoS / Postfix 1.1.11 bounce scanning","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"],"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-August/007693.html"},{"name":"VU#895508","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred"],"url":"http://www.kb.cert.org/vuls/id/895508"},{"name":"2003-0029","tags":["vendor-advisory","x_refsource_TRUSTIX","x_transferred"],"url":"http://marc.info/?l=bugtraq&m=106029188614704&w=2"},{"name":"MDKSA-2003:081","tags":["vendor-advisory","x_refsource_MANDRAKE","x_transferred"],"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2003:081"},{"name":"RHSA-2003:251","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"],"url":"http://www.redhat.com/support/errata/RHSA-2003-251.html"},{"name":"DSA-363","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"],"url":"http://www.debian.org/security/2003/dsa-363"},{"name":"20030804 Postfix 1.1.12 remote DoS / Postfix 1.1.11 bounce scanning","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"],"url":"http://marc.info/?l=bugtraq&m=106001525130257&w=2"},{"name":"ESA-20030804-019","tags":["vendor-advisory","x_refsource_ENGARDE","x_transferred"],"url":"http://www.linuxsecurity.com/advisories/engarde_advisory-3517.html"},{"name":"SuSE-SA:2003:033","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"],"url":"http://www.novell.com/linux/security/advisories/2003_033_postfix.html"},{"name":"oval:org.mitre.oval:def:544","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"],"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A544"},{"name":"9433","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/9433"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2003-08-03T00:00:00.000Z","descriptions":[{"lang":"en","value":"The address parser code in Postfix 1.1.12 and earlier allows remote attackers to cause a denial of service (lock) via (1) a malformed envelope address to a local host that would generate a bounce and contains the \".!\" string in the MAIL FROM or Errors-To headers, which causes nqmgr to lock up, or (2) via a valid MAIL FROM with a RCPT TO containing a \".!\" string, which causes an instance of the SMTP listener to lock up."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2017-10-10T00:57:01.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"name":"CLA-2003:717","tags":["vendor-advisory","x_refsource_CONECTIVA"],"url":"http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000717"},{"name":"8333","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/8333"},{"name":"20030804 Postfix 1.1.12 remote DoS / Postfix 1.1.11 bounce scanning","tags":["mailing-list","x_refsource_FULLDISC"],"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-August/007693.html"},{"name":"VU#895508","tags":["third-party-advisory","x_refsource_CERT-VN"],"url":"http://www.kb.cert.org/vuls/id/895508"},{"name":"2003-0029","tags":["vendor-advisory","x_refsource_TRUSTIX"],"url":"http://marc.info/?l=bugtraq&m=106029188614704&w=2"},{"name":"MDKSA-2003:081","tags":["vendor-advisory","x_refsource_MANDRAKE"],"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2003:081"},{"name":"RHSA-2003:251","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"http://www.redhat.com/support/errata/RHSA-2003-251.html"},{"name":"DSA-363","tags":["vendor-advisory","x_refsource_DEBIAN"],"url":"http://www.debian.org/security/2003/dsa-363"},{"name":"20030804 Postfix 1.1.12 remote DoS / Postfix 1.1.11 bounce scanning","tags":["mailing-list","x_refsource_BUGTRAQ"],"url":"http://marc.info/?l=bugtraq&m=106001525130257&w=2"},{"name":"ESA-20030804-019","tags":["vendor-advisory","x_refsource_ENGARDE"],"url":"http://www.linuxsecurity.com/advisories/engarde_advisory-3517.html"},{"name":"SuSE-SA:2003:033","tags":["vendor-advisory","x_refsource_SUSE"],"url":"http://www.novell.com/linux/security/advisories/2003_033_postfix.html"},{"name":"oval:org.mitre.oval:def:544","tags":["vdb-entry","signature","x_refsource_OVAL"],"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A544"},{"name":"9433","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/9433"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2003-0540","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The address parser code in Postfix 1.1.12 and earlier allows remote attackers to cause a denial of service (lock) via (1) a malformed envelope address to a local host that would generate a bounce and contains the \".!\" string in the MAIL FROM or Errors-To headers, which causes nqmgr to lock up, or (2) via a valid MAIL FROM with a RCPT TO containing a \".!\" string, which causes an instance of the SMTP listener to lock up."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"CLA-2003:717","refsource":"CONECTIVA","url":"http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000717"},{"name":"8333","refsource":"BID","url":"http://www.securityfocus.com/bid/8333"},{"name":"20030804 Postfix 1.1.12 remote DoS / Postfix 1.1.11 bounce scanning","refsource":"FULLDISC","url":"http://lists.grok.org.uk/pipermail/full-disclosure/2003-August/007693.html"},{"name":"VU#895508","refsource":"CERT-VN","url":"http://www.kb.cert.org/vuls/id/895508"},{"name":"2003-0029","refsource":"TRUSTIX","url":"http://marc.info/?l=bugtraq&m=106029188614704&w=2"},{"name":"MDKSA-2003:081","refsource":"MANDRAKE","url":"http://www.mandriva.com/security/advisories?name=MDKSA-2003:081"},{"name":"RHSA-2003:251","refsource":"REDHAT","url":"http://www.redhat.com/support/errata/RHSA-2003-251.html"},{"name":"DSA-363","refsource":"DEBIAN","url":"http://www.debian.org/security/2003/dsa-363"},{"name":"20030804 Postfix 1.1.12 remote DoS / Postfix 1.1.11 bounce scanning","refsource":"BUGTRAQ","url":"http://marc.info/?l=bugtraq&m=106001525130257&w=2"},{"name":"ESA-20030804-019","refsource":"ENGARDE","url":"http://www.linuxsecurity.com/advisories/engarde_advisory-3517.html"},{"name":"SuSE-SA:2003:033","refsource":"SUSE","url":"http://www.novell.com/linux/security/advisories/2003_033_postfix.html"},{"name":"oval:org.mitre.oval:def:544","refsource":"OVAL","url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A544"},{"name":"9433","refsource":"SECUNIA","url":"http://secunia.com/advisories/9433"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2003-0540","datePublished":"2003-08-05T04:00:00.000Z","dateReserved":"2003-07-14T00:00:00.000Z","dateUpdated":"2024-08-08T01:58:10.982Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2003-08-27 04:00:00","lastModifiedDate":"2025-04-03 01:03:51","problem_types":["NVD-CWE-Other","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:wietse_venema:postfix:1.0.21:*:*:*:*:*:*:*","matchCriteriaId":"F8C70650-45F8-42F1-863E-C14CFD27986D"},{"vulnerable":true,"criteria":"cpe:2.3:a:wietse_venema:postfix:1.1.11:*:*:*:*:*:*:*","matchCriteriaId":"6886742C-C8CF-4DE8-812C-30CB19984329"},{"vulnerable":true,"criteria":"cpe:2.3:a:wietse_venema:postfix:1.1.12:*:*:*:*:*:*:*","matchCriteriaId":"560E65A3-1583-45D5-AAB4-352E09B74C21"},{"vulnerable":true,"criteria":"cpe:2.3:a:wietse_venema:postfix:1999-09-06:*:*:*:*:*:*:*","matchCriteriaId":"D8F498EC-BAB8-44E9-A1E9-F5FE59D969E7"},{"vulnerable":true,"criteria":"cpe:2.3:a:wietse_venema:postfix:1999-12-31:*:*:*:*:*:*:*","matchCriteriaId":"3AC09670-77D3-40B7-BD0A-2F447FAB272E"},{"vulnerable":true,"criteria":"cpe:2.3:a:wietse_venema:postfix:2000-02-28:*:*:*:*:*:*:*","matchCriteriaId":"711ECD8D-66D7-414E-B509-9F10A93FCED8"},{"vulnerable":true,"criteria":"cpe:2.3:a:wietse_venema:postfix:2001-11-15:*:*:*:*:*:*:*","matchCriteriaId":"0C6E6C91-AE96-481F-92F5-C56F45ABE8E3"},{"vulnerable":true,"criteria":"cpe:2.3:o:conectiva:linux:7.0:*:*:*:*:*:*:*","matchCriteriaId":"97177EF7-8FC4-4D4D-A8D9-3628AA0035FB"},{"vulnerable":true,"criteria":"cpe:2.3:o:conectiva:linux:8.0:*:*:*:*:*:*:*","matchCriteriaId":"CD14661C-E3BE-44DF-BC8D-294322BF23EA"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2003","CveId":"540","Ordinal":"1","Title":"CVE-2003-0540","CVE":"CVE-2003-0540","Year":"2003"},"notes":[{"CveYear":"2003","CveId":"540","Ordinal":"1","NoteData":"The address parser code in Postfix 1.1.12 and earlier allows remote attackers to cause a denial of service (lock) via (1) a malformed envelope address to a local host that would generate a bounce and contains the \".!\" string in the MAIL FROM or Errors-To headers, which causes nqmgr to lock up, or (2) via a valid MAIL FROM with a RCPT TO containing a \".!\" string, which causes an instance of the SMTP listener to lock up.","Type":"Description","Title":"CVE-2003-0540"},{"CveYear":"2003","CveId":"540","Ordinal":"2","NoteData":"2003-08-05","Type":"Other","Title":"Published"},{"CveYear":"2003","CveId":"540","Ordinal":"3","NoteData":"2017-10-09","Type":"Other","Title":"Modified"}]}}}