CVE-2009-0871

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1.6.0 before 1.6.0.6; 1.6.1 before 1.6.1.0-rc2; and Asterisk Business Edition C.2.3, with the pedantic option enabled, allows remote authenticated users to cause a denial of service (crash) via a SIP INVITE request without any headers, which triggers a NULL pointer dereference in the (1) sip_uri_headers_cmp and (2) sip_uri_params_cmp functions."}, {"lang": "es", "value": "El controlador de canal SIP en Asterisk Open Source v1.4.22, v1.4.23, y v1.4.23.1; v1.6.0 anterior a v1.6.0.6; v1.6.1 anterior a v1.6.1.0-rc2; y Asterisk Business Edition C.2.3, con la opci\u00f3n \"pedantic\" activada, permite a usuarios autenticados remotamente provocar una denegaci\u00f3n de servicio (ca\u00edda) a trav\u00f1es de una petici\u00f3n SIP INVITE sin cabecera, lo que dispara una deferencia a puntero NULL en las funciones (1) sip_uri_headers_cmp y(2) sip_uri_params_cmp."}], "id": "CVE-2009-0871", "lastModified": "2026-06-16T23:06:00.170", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 3.5, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2009-03-11T14:19:15.420", "references": [{"source": "cve@mitre.org", "url": "http://bugs.digium.com/view.php?id=13547"}, {"source": "cve@mitre.org", "url": "http://bugs.digium.com/view.php?id=14417"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "http://downloads.digium.com/pub/security/AST-2009-002.html"}, {"source": "cve@mitre.org", "url": "http://osvdb.org/52568"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/34229"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/archive/1/501656/100/0/threaded"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "http://www.securityfocus.com/bid/34070"}, {"source": "cve@mitre.org", "url": "http://www.securitytracker.com/id?1021834"}, {"source": "cve@mitre.org", "url": "http://www.vupen.com/english/advisories/2009/0667"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://bugs.digium.com/view.php?id=13547"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://bugs.digium.com/view.php?id=14417"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://downloads.digium.com/pub/security/AST-2009-002.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://osvdb.org/52568"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/34229"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/archive/1/501656/100/0/threaded"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://www.securityfocus.com/bid/34070"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id?1021834"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.vupen.com/english/advisories/2009/0667"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "asterisk: remote crash in SIP channel driver (AST-2009-002)", "id": "489725", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=489725"}, "csaw": false, "details": ["The SIP channel driver in Asterisk Open Source 1.4.22, 1.4.23, and 1.4.23.1; 1.6.0 before 1.6.0.6; 1.6.1 before 1.6.1.0-rc2; and Asterisk Business Edition C.2.3, with the pedantic option enabled, allows remote authenticated users to cause a denial of service (crash) via a SIP INVITE request without any headers, which triggers a NULL pointer dereference in the (1) sip_uri_headers_cmp and (2) sip_uri_params_cmp functions."], "name": "CVE-2009-0871", "public_date": "2009-03-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2009-0871"], "threat_severity": "Moderate"}

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