{"api_version":"1","generated_at":"2026-04-09T04:29:58+00:00","cve":"CVE-2018-16657","urls":{"html":"https://cve.report/CVE-2018-16657","api":"https://cve.report/api/cve/CVE-2018-16657.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-16657","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-16657"},"summary":{"title":"CVE-2018-16657","description":"In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with an invalid Via header causes a segmentation fault and crashes Kamailio. The reason is missing input validation in the crcitt_string_array core function for calculating a CRC hash for To tags. (An additional error is present in the check_via_address core function: this function also misses input validation.) This could result in denial of service and potentially the execution of arbitrary code.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2018-09-07 14:29:00","updated_at":"2020-08-24 17:37:00"},"problem_types":["CWE-476"],"metrics":[],"references":[{"url":"https://skalatan.de/blog/advisory-hw-2018-06","name":"https://skalatan.de/blog/advisory-hw-2018-06","refsource":"MISC","tags":["Exploit","Patch","Third Party Advisory"],"title":"Advisory HW-2018-06 | skalatan.de","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html","name":"[debian-lts-announce] 20180912 [SECURITY] [DLA 1503-1] kamailio security update","refsource":"MLIST","tags":["Mailing List","Third Party Advisory"],"title":"[SECURITY] [DLA 1503-1] kamailio security update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.debian.org/security/2018/dsa-4292","name":"DSA-4292","refsource":"DEBIAN","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-4292-1 kamailio","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-16657","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-16657","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2018","cve_id":"16657","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"16657","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"16657","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"8.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"16657","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"16657","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"kamailio","cpe5":"kamailio","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"16657","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"kamailio","cpe5":"kamailio","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2018-16657","qid":"199477","title":"Ubuntu Security Notification for Kamailio Vulnerabilities (USN-6022-1)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2018-16657","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":"In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with an invalid Via header causes a segmentation fault and crashes Kamailio. The reason is missing input validation in the crcitt_string_array core function for calculating a CRC hash for To tags. (An additional error is present in the check_via_address core function: this function also misses input validation.) This could result in denial of service and potentially the execution of arbitrary code."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"DSA-4292","refsource":"DEBIAN","url":"https://www.debian.org/security/2018/dsa-4292"},{"name":"[debian-lts-announce] 20180912 [SECURITY] [DLA 1503-1] kamailio security update","refsource":"MLIST","url":"https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html"},{"name":"https://skalatan.de/blog/advisory-hw-2018-06","refsource":"MISC","url":"https://skalatan.de/blog/advisory-hw-2018-06"}]}},"nvd":{"publishedDate":"2018-09-07 14:29:00","lastModifiedDate":"2020-08-24 17:37:00","problem_types":["CWE-476"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":7.5},"severity":"HIGH","exploitabilityScore":10,"impactScore":6.4,"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:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:*","versionStartIncluding":"5.1.0","versionEndExcluding":"5.1.4","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:*","versionEndExcluding":"5.0.7","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"16657","Ordinal":"133468","Title":"CVE-2018-16657","CVE":"CVE-2018-16657","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"16657","Ordinal":"1","NoteData":"In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with an invalid Via header causes a segmentation fault and crashes Kamailio. The reason is missing input validation in the crcitt_string_array core function for calculating a CRC hash for To tags. (An additional error is present in the check_via_address core function: this function also misses input validation.) This could result in denial of service and potentially the execution of arbitrary code.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"16657","Ordinal":"2","NoteData":"2018-09-07","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"16657","Ordinal":"3","NoteData":"2018-09-13","Type":"Other","Title":"Modified"}]}}}