CVE-2011-2943

{"id": "CVE-2011-2943", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}]}, "published": "2011-08-29T17:55:00.957", "references": [{"url": "http://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.c", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43", "tags": ["Patch"], "source": "secalert@redhat.com"}, {"url": "http://pidgin.im/news/security/?id=53", "tags": ["Patch", "Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/45663", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/45916", "source": "secalert@redhat.com"}, {"url": "http://securitytracker.com/id?1025961", "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2011/08/20/2", "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2011/08/22/2", "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/49268", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=722939", "source": "secalert@redhat.com"}, {"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69340", "source": "secalert@redhat.com"}, {"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005", "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-Other"}]}], "descriptions": [{"lang": "en", "value": "The irc_msg_who function in msgs.c in the IRC protocol plugin in libpurple 2.8.0 through 2.9.0 in Pidgin before 2.10.0 does not properly validate characters in nicknames, which allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted nickname that is not properly handled in a WHO response."}, {"lang": "es", "value": "La funci\u00f3n irc_msg_who en msgs.c en el plugin del protocolo IRC en libpurple v2.8.0 hasta v2.9.0 en Pidgin anterior a v2.10.0 no valida adecuadamente caracteres en nombres de usuario, lo que permite a atacantes remotos asistidos por el usuario provocar una denegaci\u00f3n de servicio (desreferenciar un puntero NULL y ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s del nombre de usuario que no se maneja adecuadamente en una respuesta WHO."}], "lastModified": "2017-09-19T01:33:28.697", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:pidgin:libpurple:2.8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A07707B-7497-46B0-AD82-6220D465CA5C"}, {"criteria": "cpe:2.3:a:pidgin:libpurple:2.9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C6BF6251-A20F-4C9A-A484-5D3F0B0C7A0D"}, {"criteria": "cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D6DA23D4-257B-4694-B111-A2F0D4F94C73", "versionEndIncluding": "2.9.0"}, {"criteria": "cpe:2.3:a:pidgin:pidgin:2.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DBC2EBF3-73A7-4542-8E9C-47A4241A224C"}, {"criteria": "cpe:2.3:a:pidgin:pidgin:2.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": 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"E00006E6-1999-4967-8BE9-2B7265F3E6F8"}, {"criteria": "cpe:2.3:a:pidgin:pidgin:2.7.7:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "61BD8C57-DD49-44C1-BD0A-0A1210C1BE57"}, {"criteria": "cpe:2.3:a:pidgin:pidgin:2.7.8:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AF5CD573-D9CE-41E6-8FAB-7DBEA4E545F1"}, {"criteria": "cpe:2.3:a:pidgin:pidgin:2.7.9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2389B152-70AC-47A7-BDAE-3A7F0550E6C0"}, {"criteria": "cpe:2.3:a:pidgin:pidgin:2.7.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A81DAE1-4633-46A9-8DC9-42E6EC1D641B"}, {"criteria": "cpe:2.3:a:pidgin:pidgin:2.7.11:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9BE026B2-73D6-43AD-9003-B159992D0323"}, {"criteria": "cpe:2.3:a:pidgin:pidgin:2.8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ACCCDDDA-58C9-443A-9D7F-44D362E363C1"}], "operator": "OR"}]}], "evaluatorComment": "Per: http://cwe.mitre.org/data/definitions/476.html\r\n'CWE-476: NULL Pointer Dereference'", "sourceIdentifier": "secalert@redhat.com"}