{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-07T19:33:10.148","vulnerabilities":[{"cve":{"id":"CVE-2022-29169","sourceIdentifier":"security-advisories@github.com","published":"2022-06-01T23:15:07.970","lastModified":"2024-11-21T06:58:37.840","vulnStatus":"Modified","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 código 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 denegación de servicio con expresiones regulares (ReDoS). Usando una RegularExpression específica, un atacante puede causar una denegación de servicio para el servicio bbb-html5. La biblioteca useragent lleva a cabo una comprobación del dispositivo al analizar la entrada del encabezado User-Agent y la hace pasar por lookupUserAgent() (alias de useragent.lookup() ). Esta función maneja la entrada mediante regexing y atacantes pueden abusar de ello  al proporcionar alguna carga útil 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 mitigación, deshabilite que NginX reenvíe las peticiones al administrador según las indicaciones del aviso de seguridad de GitHub"}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5.0,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10.0,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-1333"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*","versionStartIncluding":"2.2.0","versionEndExcluding":"2.3.19","matchCriteriaId":"3A9BA43E-5B7C-4B62-AE0E-72776BD3F281"},{"vulnerable":true,"criteria":"cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*","versionStartIncluding":"2.4.0","versionEndExcluding":"2.4.7","matchCriteriaId":"2DC6C975-3730-40C0-9FE1-EE4A40BCF98B"},{"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"}]}]}],"references":[{"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":["Patch","Third Party Advisory"]},{"url":"https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp","source":"security-advisories@github.com","tags":["Mitigation","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":["Patch","Third Party Advisory"]},{"url":"https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rwrv-p665-4vwp","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mitigation","Patch","Third Party Advisory"]}]}}]}