CVE-2022-29169

{"containers": {"cna": {"affected": [{"product": "bigbluebutton", "vendor": "bigbluebutton", "versions": [{"status": "affected", "version": ">= 2.2, < 2.3.19"}, {"status": "affected", "version": ">= 2.4.0, < 2.4.7"}, {"status": "affected", "version": ">= 2.5-alpha-1, < 2.5.0-beta.2"}]}], "descriptions": [{"lang": "en", "value": "BigBlueButton is an open source web conferencing system. Versions starting with 2.2 and prior to 2.3.19, 2.4.7, and 2.5.0-beta.2 are vulnerable to regular expression denial of service (ReDoS) attacks. By using specific a RegularExpression, an attacker can cause denial of service for the bbb-html5 service. The useragent library performs checking of device by parsing the input of User-Agent header and lets it go through lookupUserAgent() (alias of useragent.lookup() ). This function handles input by regexing and attackers can abuse that by providing some ReDos payload using `SmartWatch`. The maintainers removed `htmlclient/useragent` from versions 2.3.19, 2.4.7, and 2.5.0-beta.2. As a workaround, disable NginX forwarding the requests to the handler according to the directions in the GitHub Security Advisory."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20: Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-06-01T22:20:12.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14886"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14896"}], "source": {"advisory": "GHSA-rwrv-p665-4vwp", "discovery": "UNKNOWN"}, "title": "ReDoS on endpoint html5client/useragent in BigBlueButton", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2022-29169", "STATE": "PUBLIC", "TITLE": "ReDoS on endpoint html5client/useragent in BigBlueButton"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "bigbluebutton", "version": {"version_data": [{"version_value": ">= 2.2, < 2.3.19"}, {"version_value": ">= 2.4.0, < 2.4.7"}, {"version_value": ">= 2.5-alpha-1, < 2.5.0-beta.2"}]}}]}, "vendor_name": "bigbluebutton"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "BigBlueButton is an open source web conferencing system. Versions starting with 2.2 and prior to 2.3.19, 2.4.7, and 2.5.0-beta.2 are vulnerable to regular expression denial of service (ReDoS) attacks. By using specific a RegularExpression, an attacker can cause denial of service for the bbb-html5 service. The useragent library performs checking of device by parsing the input of User-Agent header and lets it go through lookupUserAgent() (alias of useragent.lookup() ). This function handles input by regexing and attackers can abuse that by providing some ReDos payload using `SmartWatch`. The maintainers removed `htmlclient/useragent` from versions 2.3.19, 2.4.7, and 2.5.0-beta.2. As a workaround, disable NginX forwarding the requests to the handler according to the directions in the GitHub Security Advisory."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-20: Improper Input Validation"}]}]}, "references": {"reference_data": [{"name": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp", "refsource": "CONFIRM", "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/pull/14886", "refsource": "MISC", "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14886"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/pull/14896", "refsource": "MISC", "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14896"}]}, "source": {"advisory": "GHSA-rwrv-p665-4vwp", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T06:17:54.142Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14886"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14896"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-23T15:54:39.682316Z", "id": "CVE-2022-29169", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-23T18:20:31.969Z"}}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2022-29169", "datePublished": "2022-06-01T22:20:12.000Z", "dateReserved": "2022-04-13T00:00:00.000Z", "dateUpdated": "2025-04-23T18:20:31.969Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "https://github.com/bigbluebutton/bigbluebutton/pull/14886", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "https://github.com/bigbluebutton/bigbluebutton/pull/14896", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T06:17:54.142Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-29169", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-23T15:54:39.682316Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-23T15:54:41.363Z"}}], "cna": {"title": "ReDoS on endpoint html5client/useragent in BigBlueButton", "source": {"advisory": "GHSA-rwrv-p665-4vwp", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "bigbluebutton", "product": "bigbluebutton", "versions": [{"status": "affected", "version": ">= 2.2, < 2.3.19"}, {"status": "affected", "version": ">= 2.4.0, < 2.4.7"}, {"status": "affected", "version": ">= 2.5-alpha-1, < 2.5.0-beta.2"}]}], "references": [{"url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/bigbluebutton/bigbluebutton/pull/14886", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/bigbluebutton/bigbluebutton/pull/14896", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "BigBlueButton is an open source web conferencing system. Versions starting with 2.2 and prior to 2.3.19, 2.4.7, and 2.5.0-beta.2 are vulnerable to regular expression denial of service (ReDoS) attacks. By using specific a RegularExpression, an attacker can cause denial of service for the bbb-html5 service. The useragent library performs checking of device by parsing the input of User-Agent header and lets it go through lookupUserAgent() (alias of useragent.lookup() ). This function handles input by regexing and attackers can abuse that by providing some ReDos payload using `SmartWatch`. The maintainers removed `htmlclient/useragent` from versions 2.3.19, 2.4.7, and 2.5.0-beta.2. As a workaround, disable NginX forwarding the requests to the handler according to the directions in the GitHub Security Advisory."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "CWE-20: Improper Input Validation"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2022-06-01T22:20:12.000Z"}, "x_legacyV4Record": {"impact": {"cvss": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, "source": {"advisory": "GHSA-rwrv-p665-4vwp", "discovery": "UNKNOWN"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": ">= 2.2, < 2.3.19"}, {"version_value": ">= 2.4.0, < 2.4.7"}, {"version_value": ">= 2.5-alpha-1, < 2.5.0-beta.2"}]}, "product_name": "bigbluebutton"}]}, "vendor_name": "bigbluebutton"}]}}, "data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp", "name": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp", "refsource": "CONFIRM"}, {"url": "https://github.com/bigbluebutton/bigbluebutton/pull/14886", "name": "https://github.com/bigbluebutton/bigbluebutton/pull/14886", "refsource": "MISC"}, {"url": "https://github.com/bigbluebutton/bigbluebutton/pull/14896", "name": "https://github.com/bigbluebutton/bigbluebutton/pull/14896", "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "BigBlueButton is an open source web conferencing system. Versions starting with 2.2 and prior to 2.3.19, 2.4.7, and 2.5.0-beta.2 are vulnerable to regular expression denial of service (ReDoS) attacks. By using specific a RegularExpression, an attacker can cause denial of service for the bbb-html5 service. The useragent library performs checking of device by parsing the input of User-Agent header and lets it go through lookupUserAgent() (alias of useragent.lookup() ). This function handles input by regexing and attackers can abuse that by providing some ReDos payload using `SmartWatch`. The maintainers removed `htmlclient/useragent` from versions 2.3.19, 2.4.7, and 2.5.0-beta.2. As a workaround, disable NginX forwarding the requests to the handler according to the directions in the GitHub Security Advisory."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-20: Improper Input Validation"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-29169", "STATE": "PUBLIC", "TITLE": "ReDoS on endpoint html5client/useragent in BigBlueButton", "ASSIGNER": "security-advisories@github.com"}}}}, "cveMetadata": {"cveId": "CVE-2022-29169", "state": "PUBLISHED", "dateUpdated": "2025-04-23T18:20:31.969Z", "dateReserved": "2022-04-13T00:00:00.000Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2022-06-01T22:20:12.000Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "bigbluebutton", "vendor": "bigbluebutton", "versions": [{"status": "affected", "version": ">= 2.2, < 2.3.19"}, {"status": "affected", "version": ">= 2.4.0, < 2.4.7"}, {"status": "affected", "version": ">= 2.5-alpha-1, < 2.5.0-beta.2"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*", "matchCriteriaId": "3A9BA43E-5B7C-4B62-AE0E-72776BD3F281", "versionEndExcluding": "2.3.19", "versionStartIncluding": "2.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*", "matchCriteriaId": "2DC6C975-3730-40C0-9FE1-EE4A40BCF98B", "versionEndExcluding": "2.4.7", "versionStartIncluding": "2.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.5:alpha1:*:*:*:*:*:*", "matchCriteriaId": "5380CCEF-88B8-43AA-A76E-18076B1CAE94", "vulnerable": true}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.5:alpha2:*:*:*:*:*:*", "matchCriteriaId": "B30DFF3F-F71E-4412-88F8-790A4A4F459B", "vulnerable": true}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.5:alpha3:*:*:*:*:*:*", "matchCriteriaId": "F75A0FD2-BF0A-42AE-8D87-1A749BF1B47F", "vulnerable": true}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.5:alpha4:*:*:*:*:*:*", "matchCriteriaId": "454FF756-9526-4A5E-A2A5-390393791F37", "vulnerable": true}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.5:alpha5:*:*:*:*:*:*", "matchCriteriaId": "F7AC4A50-4156-4856-B92D-09E128169D17", "vulnerable": true}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.5:alpha6:*:*:*:*:*:*", "matchCriteriaId": "2AB075EF-BD7A-4AD6-9B0E-2A0242198626", "vulnerable": true}, {"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:2.5:beta1:*:*:*:*:*:*", "matchCriteriaId": "080771DC-2CB1-4397-B10E-3B267A476205", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "BigBlueButton is an open source web conferencing system. Versions starting with 2.2 and prior to 2.3.19, 2.4.7, and 2.5.0-beta.2 are vulnerable to regular expression denial of service (ReDoS) attacks. By using specific a RegularExpression, an attacker can cause denial of service for the bbb-html5 service. The useragent library performs checking of device by parsing the input of User-Agent header and lets it go through lookupUserAgent() (alias of useragent.lookup() ). This function handles input by regexing and attackers can abuse that by providing some ReDos payload using `SmartWatch`. The maintainers removed `htmlclient/useragent` from versions 2.3.19, 2.4.7, and 2.5.0-beta.2. As a workaround, disable NginX forwarding the requests to the handler according to the directions in the GitHub Security Advisory."}, {"lang": "es", "value": "BigBlueButton es un sistema de conferencias web de c\u00f3digo abierto. Las versiones a partir de 2.2 y anteriores a 2.3.19, 2.4.7 y 2.5.0-beta.2 son vulnerables a ataques de denegaci\u00f3n de servicio con expresiones regulares (ReDoS). Usando una RegularExpression espec\u00edfica, un atacante puede causar una denegaci\u00f3n de servicio para el servicio bbb-html5. La biblioteca useragent lleva a cabo una comprobaci\u00f3n del dispositivo al analizar la entrada del encabezado User-Agent y la hace pasar por lookupUserAgent() (alias de useragent.lookup() ). Esta funci\u00f3n maneja la entrada mediante regexing y atacantes pueden abusar de ello al proporcionar alguna carga \u00fatil ReDos usando \"SmartWatch\". Los mantenedores han eliminado \"htmlclient/useragent\" de las versiones 2.3.19, 2.4.7 y 2.5.0-beta.2. Como mitigaci\u00f3n, deshabilite que NginX reenv\u00ede las peticiones al administrador seg\u00fan las indicaciones del aviso de seguridad de GitHub"}], "id": "CVE-2022-29169", "lastModified": "2026-06-17T04:39:44.023", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-29169", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-04-23T15:54:39.682316Z", "version": "2.0.3"}}]}, "published": "2022-06-01T23:15:07.970", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14886"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14896"}, {"source": "security-advisories@github.com", "tags": ["Mitigation", "Patch", "Third Party Advisory"], "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14886"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14896"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Patch", "Third Party Advisory"], "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-1333"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}