{"api_version":"1","generated_at":"2026-04-22T23:31:02+00:00","cve":"CVE-2021-32918","urls":{"html":"https://cve.report/CVE-2021-32918","api":"https://cve.report/api/cve/CVE-2021-32918.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-32918","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-32918"},"summary":{"title":"CVE-2021-32918","description":"An issue was discovered in Prosody before 0.11.9. Default settings are susceptible to remote unauthenticated denial-of-service (DoS) attacks via memory exhaustion when running under Lua 5.2 or Lua 5.3.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2021-05-13 16:15:00","updated_at":"2023-11-07 03:35:00"},"problem_types":["CWE-400"],"metrics":[],"references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/","name":"FEDORA-2021-a33f6e36e1","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 34 Update: prosody-0.11.9-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://blog.prosody.im/prosody-0.11.9-released/","name":"https://blog.prosody.im/prosody-0.11.9-released/","refsource":"MISC","tags":[],"title":"Prosody 0.11.9 released | Prosodical Thoughts","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/","name":"FEDORA-2021-b5d8c6d086","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 33 Update: prosody-0.11.9-1.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"http://www.openwall.com/lists/oss-security/2021/05/13/1","name":"[oss-security] 20210513 Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)","refsource":"MLIST","tags":[],"title":"oss-security - Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.debian.org/security/2021/dsa-4916","name":"DSA-4916","refsource":"DEBIAN","tags":[],"title":"Debian -- Security Information -- DSA-4916-1 prosody","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/","name":"FEDORA-2021-a33f6e36e1","refsource":"","tags":[],"title":"[SECURITY] Fedora 34 Update: prosody-0.11.9-1.fc34 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/","name":"FEDORA-2021-498be8f560","refsource":"FEDORA","tags":[],"title":"[SECURITY] Fedora 32 Update: prosody-0.11.9-1.fc32 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/","name":"FEDORA-2021-498be8f560","refsource":"","tags":[],"title":"[SECURITY] Fedora 32 Update: prosody-0.11.9-1.fc32 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.openwall.com/lists/oss-security/2021/05/14/2","name":"[oss-security] 20210514 Re: Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)","refsource":"MLIST","tags":[],"title":"oss-security - Re: Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/","name":"FEDORA-2021-b5d8c6d086","refsource":"","tags":[],"title":"[SECURITY] Fedora 33 Update: prosody-0.11.9-1.fc33 - package-announce - Fedora Mailing-Lists","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/202105-15","name":"https://security.gentoo.org/glsa/202105-15","refsource":"MISC","tags":[],"title":"Prosŏdy IM: Multiple vulnerabilities (GLSA 202105-15) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-32918","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32918","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"32918","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"10.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"32918","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"32","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"32918","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"33","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"32918","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"fedoraproject","cpe5":"fedora","cpe6":"34","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"32918","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"lua","cpe5":"lua","cpe6":"5.2.0","cpe7":"-","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"32918","vulnerable":"-1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"lua","cpe5":"lua","cpe6":"5.3.0","cpe7":"-","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"32918","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"prosody","cpe5":"prosody","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-32918","qid":"178602","title":"Debian Security Update for prosody (DSA 4916-1)"},{"cve":"CVE-2021-32918","qid":"179847","title":"Debian Security Update for prosody (CVE-2021-32918)"},{"cve":"CVE-2021-32918","qid":"281156","title":"Fedora Security Update for prosody (FEDORA-2021-498be8f560)"},{"cve":"CVE-2021-32918","qid":"281157","title":"Fedora Security Update for prosody (FEDORA-2021-b5d8c6d086)"},{"cve":"CVE-2021-32918","qid":"281158","title":"Fedora Security Update for prosody (FEDORA-2021-a33f6e36e1)"},{"cve":"CVE-2021-32918","qid":"501226","title":"Alpine Linux Security Update for prosody"},{"cve":"CVE-2021-32918","qid":"690138","title":"Free Berkeley Software Distribution (FreeBSD) Security Update for prosody (fc75570a-b417-11eb-a23d-c7ab331fd711)"},{"cve":"CVE-2021-32918","qid":"710569","title":"Gentoo Linux Prosody IM Multiple Vulnerabilities (GLSA 202105-15)"},{"cve":"CVE-2021-32918","qid":"750212","title":"OpenSUSE Security Update for prosody (openSUSE-SU-2021:0728-1)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-32918","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An issue was discovered in Prosody before 0.11.9. Default settings are susceptible to remote unauthenticated denial-of-service (DoS) attacks via memory exhaustion when running under Lua 5.2 or Lua 5.3."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"url":"https://blog.prosody.im/prosody-0.11.9-released/","refsource":"MISC","name":"https://blog.prosody.im/prosody-0.11.9-released/"},{"refsource":"MLIST","name":"[oss-security] 20210513 Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)","url":"http://www.openwall.com/lists/oss-security/2021/05/13/1"},{"refsource":"MLIST","name":"[oss-security] 20210514 Re: Prosody XMPP server advisory 2021-05-12 (multiple vulnerabilities)","url":"http://www.openwall.com/lists/oss-security/2021/05/14/2"},{"refsource":"DEBIAN","name":"DSA-4916","url":"https://www.debian.org/security/2021/dsa-4916"},{"refsource":"FEDORA","name":"FEDORA-2021-b5d8c6d086","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6MFFBZWXKPZEVZNQSVJNCUE7WRF3T7DG/"},{"refsource":"FEDORA","name":"FEDORA-2021-a33f6e36e1","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LWJ2DG2DFJOEFEWOUN26IMYYWGSA2ZEE/"},{"refsource":"FEDORA","name":"FEDORA-2021-498be8f560","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GUN63AHEWB2WRROJHU3BVJRWLONCT2B7/"},{"refsource":"MISC","name":"https://security.gentoo.org/glsa/202105-15","url":"https://security.gentoo.org/glsa/202105-15"}]}},"nvd":{"publishedDate":"2021-05-13 16:15:00","lastModifiedDate":"2023-11-07 03:35:00","problem_types":["CWE-400"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"AND","children":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:*","versionEndExcluding":"0.11.9","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":false,"cpe23Uri":"cpe:2.3:a:lua:lua:5.2.0:-:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":false,"cpe23Uri":"cpe:2.3:a:lua:lua:5.3.0:-:*:*:*:*:*:*","cpe_name":[]}]}],"cpe_match":[]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"32918","Ordinal":"208306","Title":"CVE-2021-32918","CVE":"CVE-2021-32918","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"32918","Ordinal":"1","NoteData":"An issue was discovered in Prosody before 0.11.9. Default settings are susceptible to remote unauthenticated denial-of-service (DoS) attacks via memory exhaustion when running under Lua 5.2 or Lua 5.3.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"32918","Ordinal":"2","NoteData":"2021-05-13","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"32918","Ordinal":"3","NoteData":"2021-05-26","Type":"Other","Title":"Modified"}]}}}