{"id":"CVE-2011-4939","aliases":["DEBIAN-CVE-2011-4939","EUVD-2011-4849","GHSA-fqpj-4v5c-wf35"],"status":"published","title":"The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote...","description":"The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by changing a nickname while in an XMPP chat room.","severity":{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.03382,"percentile":0.88859,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-264"],"published":"2012-03-15T10:00:00Z","modified":"2026-10-23T17:47:26Z","fixes":[{"ecosystem":"Debian:12","package":"pidgin","fixed_in":["2.10.2-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"pidgin","fixed_in":["2.10.2-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"pidgin","fixed_in":["2.10.2-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"pidgin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.2-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"pidgin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.2-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"pidgin","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.10.2-1"}]}]}],"products":[{"vendor":"pidgin","product":"pidgin"}],"references":[{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18406","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred","web"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2012:029","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"http://developer.pidgin.im/ticket/14392","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://developer.pidgin.im/viewmtn/revision/diff/10ead4688e3af4132d454fa3bc241480500651c9/with/d1d77da56217f3a083e1d459bef054db9f1d5699/pidgin/gtkconv.c","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://pidgin.im/news/security/?id=60","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"http://developer.pidgin.im/viewmtn/revision/info/d1d77da56217f3a083e1d459bef054db9f1d5699","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4939"},{"url":"https://github.com/advisories/GHSA-fqpj-4v5c-wf35"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4939","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2011-4939","description":"The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by changing a nickname while in an XMPP chat room.","status":"published","published":"2012-03-15T10:00:00Z","modified":"2024-08-07T00:23:38.584Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4849","description":"The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by changing a nickname while in an XMPP chat room.","status":"published","published":"2012-03-15T10:00:00Z","modified":"2024-08-07T00:23:38Z","updated_at":"2026-11-03T01:39:48.106738Z"}],"ghsa":[{"id":"GHSA-fqpj-4v5c-wf35","title":"The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote...","description":"The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by changing a nickname while in an XMPP chat room.","status":"published","published":"2022-05-14T03:49:37Z","modified":"2023-02-03T05:00:38Z","updated_at":"2026-11-02T14:52:49.982899Z"}],"nvd":[{"id":"CVE-2011-4939","description":"The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by changing a nickname while in an XMPP chat room.","status":"published","published":"2012-03-15T10:55:01.273Z","modified":"2026-06-16T23:35:39.607Z","cvss":[{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:12.272092Z"}],"osv":[{"id":"CVE-2011-4939","description":"The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by changing a nickname while in an XMPP chat room.","status":"published","published":"2012-03-15T10:55:01Z","modified":"2026-04-10T03:42:07.786551Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-4939","description":"The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by changing a nickname while in an XMPP chat room.","status":"published","published":"2012-03-15T10:55:01.273Z","modified":"2026-10-23T17:47:26.553995785Z","updated_at":"2026-11-02T15:45:24.92418Z"}]}}