cve-2011-2943
Vulnerability from cvelistv5
Published
2011-08-29 17:00
Modified
2024-08-06 23:15
Severity ?
Summary
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.
References
secalert@redhat.comhttp://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.cPatch
secalert@redhat.comhttp://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43Patch
secalert@redhat.comhttp://pidgin.im/news/security/?id=53Patch, Vendor Advisory
secalert@redhat.comhttp://secunia.com/advisories/45663Vendor Advisory
secalert@redhat.comhttp://secunia.com/advisories/45916
secalert@redhat.comhttp://securitytracker.com/id?1025961
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/08/20/2
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2011/08/22/2
secalert@redhat.comhttp://www.securityfocus.com/bid/49268
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=722939
secalert@redhat.comhttps://exchange.xforce.ibmcloud.com/vulnerabilities/69340
secalert@redhat.comhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005
af854a3a-2127-422b-91ae-364da2661108http://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.cPatch
af854a3a-2127-422b-91ae-364da2661108http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43Patch
af854a3a-2127-422b-91ae-364da2661108http://pidgin.im/news/security/?id=53Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/45663Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/45916
af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1025961
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/08/20/2
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/08/22/2
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/49268
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=722939
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/69340
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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      "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.\"}]",
      "evaluatorComment": "Per: http://cwe.mitre.org/data/definitions/476.html\r\n\u0027CWE-476: NULL Pointer Dereference\u0027",
      "id": "CVE-2011-2943",
      "lastModified": "2024-11-21T01:29:19.757",
      "metrics": "{\"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:N/C:N/I:N/A:P\", \"baseScore\": 4.3, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.6, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"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\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Patch\"]}, {\"url\": \"http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Patch\"]}, {\"url\": \"http://pidgin.im/news/security/?id=53\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"http://secunia.com/advisories/45663\", \"source\": \"secalert@redhat.com\", \"tags\": [\"Vendor Advisory\"]}, {\"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\"}, {\"url\": \"http://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.c\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"http://pidgin.im/news/security/?id=53\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"http://secunia.com/advisories/45663\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://secunia.com/advisories/45916\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://securitytracker.com/id?1025961\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2011/08/20/2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.openwall.com/lists/oss-security/2011/08/22/2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securityfocus.com/bid/49268\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=722939\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/69340\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-Other\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2011-2943\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2011-08-29T17:55:00.957\",\"lastModified\":\"2024-11-21T01:29:19.757\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"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.\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:N/A:P\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:libpurple:2.8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1A07707B-7497-46B0-AD82-6220D465CA5C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:libpurple:2.9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C6BF6251-A20F-4C9A-A484-5D3F0B0C7A0D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.9.0\",\"matchCriteriaId\":\"D6DA23D4-257B-4694-B111-A2F0D4F94C73\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.0.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DBC2EBF3-73A7-4542-8E9C-47A4241A224C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.0.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AF62072D-4956-4FE6-931E-E6EE9C49F3E7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.0.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6499D8D5-0801-498C-BD4D-508506918CEF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.1.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"73CC76CD-FF35-4B3A-9F1E-4E5A65963057\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.1.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F694A1FC-2F10-48F9-8E8D-C88A8E7397AA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.2.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5D22A117-78BE-4BAC-8A2A-6C00C9E3A4C4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.2.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"59E216BC-29E4-4C31-9CF0-DE22C2E84968\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.2.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1BD203F7-B983-4FDD-9837-D68D4F388A4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.3.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CB90B7CB-1A11-45A8-B0BC-9B2143D84A2F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.3.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9C8E3CBA-2B33-49EF-9105-8DDBB938F519\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"72AA3282-CA7D-438C-A07C-A63392333630\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.4.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BEEFF420-2868-422B-BD22-9A5749C2398F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.4.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B139D83D-7D18-42C7-988C-2070B66CB943\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.4.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"047D9636-BCCE-4956-B5A3-D276F1C2EF2D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5A8A794E-E1CB-4F0F-9739-D625E94EA566\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E64EEEA0-89CE-46BD-B387-A96521E76A6B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F6E96AA3-B567-4E97-979A-D97A4F786D55\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"09C407C0-99A2-477B-87CF-6BE9F7B367E7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EBEF0457-39D8-465B-86A7-8DFA44A1F820\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E593BFF0-650E-4EDB-BF65-C509C8A807C9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E39468D5-1378-4441-B927-5C34C85B18AB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C80012AD-8F49-4287-8AEC-C21AC5774CA9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.8:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7CB3CF0C-BECE-4685-A370-96424B0A5703\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.5.9:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3D5BC0FC-2F7D-41BE-83E4-AEDACD71F427\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A8321D92-B935-4C2A-81B1-5984BFF4FD57\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pidgin:pidgin:2.6.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"43679F1D-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Advisory\"]},{\"url\":\"http://secunia.com/advisories/45663\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://secunia.com/advisories/45916\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://securitytracker.com/id?1025961\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2011/08/20/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2011/08/22/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securityfocus.com/bid/49268\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=722939\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://exchange.xforce.ibmcloud.com/vulnerabilities/69340\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}],\"evaluatorComment\":\"Per: http://cwe.mitre.org/data/definitions/476.html\\r\\n\u0027CWE-476: NULL Pointer Dereference\u0027\"}}"
  }
}


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