CVE-2021-31878

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://downloads.digium.com/pub/security/AST-2021-007.html", "name": "https://downloads.digium.com/pub/security/AST-2021-007.html", "tags": ["Patch", "Vendor Advisory"], "refsource": "MISC"}, {"url": "http://seclists.org/fulldisclosure/2021/Jul/48", "name": "20210722 AST-2021-007: Remote Crash Vulnerability in PJSIP channel driver", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "refsource": "FULLDISC"}, {"url": "http://downloads.asterisk.org/pub/security/AST-2021-007.html", "name": "http://downloads.asterisk.org/pub/security/AST-2021-007.html", "tags": ["Patch", "Vendor Advisory"], "refsource": "MISC"}, {"url": "http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html", "name": "http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html", "tags": ["Patch", "Third Party Advisory", "VDB Entry"], "refsource": "MISC"}, {"url": "https://issues.asterisk.org/jira/browse/ASTERISK-29381", "name": "https://issues.asterisk.org/jira/browse/ASTERISK-29381", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-617"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-31878", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}}, "publishedDate": "2021-07-30T14:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:digium:asterisk:16.17.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:digium:asterisk:16.18.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:digium:asterisk:16.19.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:digium:asterisk:18.3.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:digium:asterisk:18.4.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:a:digium:asterisk:18.5.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-08-07T02:05Z"}