{"id":"GHSA-2h3q-v47h-f4rc","summary":"Ejabberd DoS via malformed stanza","details":"The `mod_pubsub` module (mod_pubsub.erl) in ejabberd 2.1.8 and 3.0.0-alpha-3 allows remote authenticated users to cause a denial of service (infinite loop) via a stanza with a publish tag that lacks a node attribute.","aliases":["CVE-2011-4320"],"modified":"2025-12-10T00:31:35.447188Z","published":"2022-05-17T05:32:37Z","database_specific":{"cwe_ids":["CWE-400"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2024-01-19T19:14:32Z","nvd_published_at":"2012-02-18T00:55:00Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4320"},{"type":"WEB","url":"https://github.com/processone/ejabberd/commit/d3c4eab46f3cd54f7686cfed740d9c130b6801cf"},{"type":"WEB","url":"https://github.com/processone/ejabberd/commit/d5b4d6785879f0a5192c26f5b5e218aec8104798"},{"type":"PACKAGE","url":"https://github.com/processone/ejabberd"},{"type":"WEB","url":"https://support.process-one.net/browse/EJAB-1498"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2011/11/19/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2011/11/19/2"},{"type":"WEB","url":"http://www.process-one.net/en/ejabberd/release_notes/release_note_ejabberd_2.1.9"}],"affected":[{"package":{"name":"ejabberd","ecosystem":"Hex","purl":"pkg:hex/ejabberd"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.1.9"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 2.1.8","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-2h3q-v47h-f4rc/GHSA-2h3q-v47h-f4rc.json"}},{"package":{"name":"ejabberd","ecosystem":"Hex","purl":"pkg:hex/ejabberd"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0-alpha-1"},{"fixed":"3.0.0-alpha-4"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 3.0.0-alpha-3","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-2h3q-v47h-f4rc/GHSA-2h3q-v47h-f4rc.json"}}],"schema_version":"1.9.0"}