{"id":"CVE-2011-2943","state":"PUBLISHED","title":"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 all","description":"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.","publishedAt":"2011-08-29T17:00:00.000Z","updatedAt":"2024-08-06T23:15:32.003Z","severity":null,"assigner":"redhat","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["http://pidgin.im/news/security/?id=53","http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43","http://www.openwall.com/lists/oss-security/2011/08/22/2","http://secunia.com/advisories/45663","https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005","https://exchange.xforce.ibmcloud.com/vulnerabilities/69340","http://secunia.com/advisories/45916","https://bugzilla.redhat.com/show_bug.cgi?id=722939","http://www.securityfocus.com/bid/49268","http://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.c","http://securitytracker.com/id?1025961","http://www.openwall.com/lists/oss-security/2011/08/20/2"],"weaknesses":[],"ingestedAt":"2026-10-29T19:39:59.387Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2011/2xxx/CVE-2011-2943.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2011-2943","state":"PUBLISHED","datePublished":"2011-08-29T17:00:00.000Z","dateUpdated":"2024-08-06T23:15:32.003Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2011-07-27T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"The 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