CVE-2018-7284

{"id": "CVE-2018-7284", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2018-02-22T00:29:01.000", "references": [{"url": "http://downloads.asterisk.org/pub/security/AST-2018-004.html", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "http://www.securityfocus.com/bid/103151", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "http://www.securitytracker.com/id/1040416", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}, {"url": "https://www.debian.org/security/2018/dsa-4320", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.exploit-db.com/exploits/44184/", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-119"}]}], "descriptions": [{"lang": "en", "value": "A Buffer Overflow issue was discovered in Asterisk through 13.19.1, 14.x through 14.7.5, and 15.x through 15.2.1, and Certified Asterisk through 13.18-cert2. When processing a SUBSCRIBE request, the res_pjsip_pubsub module stores the accepted formats present in the Accept headers of the request. This code did not limit the number of headers it processed, despite having a fixed limit of 32. If more than 32 Accept headers were present, the code would write outside of its memory and cause a crash."}, {"lang": "es", "value": "Se ha descubierto un problema de desbordamiento de b\u00fafer en Asterisk hasta la versi\u00f3n 13.19.1; versiones 14.x anteriores a la 14.7.5 y las versiones 15.x anteriores a la 15.2.1, as\u00ed como Certified Asterisk hasta la versi\u00f3n 13.18-cert2. Al procesar una petici\u00f3n SUBSCRIBE, el m\u00f3dulo res_pjsip_pubsub almacena los formatos aceptados presentes en las cabeceras Accept de la petici\u00f3n. Este c\u00f3digo no limitaba el n\u00famero de cabeceras que procesaba, a pesar de tener un l\u00edmite fijado en 32. Si estuviesen presentes m\u00e1s de 32 cabeceras Accept, el c\u00f3digo escribir\u00eda fuera de la memoria y provocar\u00eda un cierre inesperado."}], "lastModified": "2019-03-01T18:54:47.733", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E88E5DD3-A16C-4026-A7E3-02C5C8AEFA0C", "versionEndIncluding": "13.19.1"}, {"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2BBC6235-486B-46AE-96C1-A8F5B68A1D96", "versionEndIncluding": "14.7.5", "versionStartIncluding": "14.0.0"}, {"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D63485A9-4464-49C7-ACF8-826303D8C152", "versionEndIncluding": "15.2.1", "versionStartIncluding": "15.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:digium:certified_asterisk:13.18:cert1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "05795EED-0473-4806-A9AD-FD92212CCC77"}, {"criteria": "cpe:2.3:a:digium:certified_asterisk:13.18:cert2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C3F701AA-E842-4680-9747-000C3A4F6E4B"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:digium:certified_asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "56E4037E-1F6F-4E1A-8549-38219F0A8E91", "versionEndIncluding": "13.18"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}