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Auto-merge PR#5957
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CVE Team 2022-06-01 18:20:19 -04:00 committed by GitHub
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2022/29xxx/CVE-2022-29169.json
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{ {
"data_type": "CVE",
"data_format": "MITRE",
"data_version": "4.0",
"CVE_data_meta": { "CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2022-29169", "ID": "CVE-2022-29169",
"ASSIGNER": "cve@mitre.org", "STATE": "PUBLIC",
"STATE": "RESERVED" "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": {
"description_data": [ "description_data": [
{ {
"lang": "eng", "lang": "eng",
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided." "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"
}
} }