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Add CVE-2021-29509 for GHSA-q28m-8xjw-8vr5

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Jonathan Moroney 2021-05-11 09:48:17 -07:00
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2021/29xxx/CVE-2021-29509.json
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{
"data_type": "CVE",
"data_format": "MITRE",
"data_version": "4.0",
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2021-29509",
"ASSIGNER": "cve@mitre.org",
"STATE": "RESERVED"
"STATE": "PUBLIC",
"TITLE": "Keepalive Connections Causing Denial Of Service in puma"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "puma",
"version": {
"version_data": [
{
"version_value": "< 4.3.8"
},
{
"version_value": ">= 5.0.0, < 5.3.1"
}
]
}
}
]
},
"vendor_name": "puma"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"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": "Puma is a concurrent HTTP 1.1 server for Ruby/Rack applications. The fix for CVE-2019-16770 was incomplete. The original fix only protected existing connections that had already been accepted from having their requests starved by greedy persistent-connections saturating all threads in the same process. However, new connections may still be starved by greedy persistent-connections saturating all threads in all processes in the cluster. A `puma` server which received more concurrent `keep-alive` connections than the server had threads in its threadpool would service only a subset of connections, denying service to the unserved connections. This problem has been fixed in `puma` 4.3.8 and 5.3.1. Setting `queue_requests false` also fixes the issue. This is not advised when using `puma` without a reverse proxy, such as `nginx` or `apache`, because you will open yourself to slow client attacks (e.g. slowloris). The fix is very small and a git patch is available for those using unsupported versions of Puma."
}
]
},
"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-400\":\"Uncontrolled Resource Consumption\"}"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/puma/puma/security/advisories/GHSA-q28m-8xjw-8vr5",
"refsource": "CONFIRM",
"url": "https://github.com/puma/puma/security/advisories/GHSA-q28m-8xjw-8vr5"
},
{
"name": "https://gist.github.com/nateberkopec/4b3ea5676c0d70cbb37c82d54be25837",
"refsource": "MISC",
"url": "https://gist.github.com/nateberkopec/4b3ea5676c0d70cbb37c82d54be25837"
},
{
"name": "https://github.com/puma/puma/security/policy",
"refsource": "MISC",
"url": "https://github.com/puma/puma/security/policy"
},
{
"name": "https://rubygems.org/gems/puma",
"refsource": "MISC",
"url": "https://rubygems.org/gems/puma"
}
]
},
"source": {
"advisory": "GHSA-q28m-8xjw-8vr5",
"discovery": "UNKNOWN"
}
}