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{
"CVE_data_meta" : {
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"ASSIGNER" : "security-advisories@github.com" ,
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"ID" : "CVE-2022-21655" ,
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"STATE" : "PUBLIC" ,
"TITLE" : "Incorrect handling of internal redirects results in crash in Envoy"
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} ,
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"affects" : {
"vendor" : {
"vendor_data" : [
{
"product" : {
"product_data" : [
{
"product_name" : "envoy" ,
"version" : {
"version_data" : [
{
"version_value" : "< 1.18.6"
} ,
{
"version_value" : ">= 1.19.0, < 1.19.3"
} ,
{
"version_value" : ">= 1.20.0, < 1.20.2"
} ,
{
"version_value" : ">= 1.21.0, < 1.21.1"
}
]
}
}
]
} ,
"vendor_name" : "envoyproxy"
}
]
}
} ,
"data_format" : "MITRE" ,
"data_type" : "CVE" ,
"data_version" : "4.0" ,
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"description" : {
"description_data" : [
{
"lang" : "eng" ,
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"value" : "Envoy is an open source edge and service proxy, designed for cloud-native applications. The envoy common router will segfault if an internal redirect selects a route configured with direct response or redirect actions. This will result in a denial of service. As a workaround turn off internal redirects if direct response entries are configured on the same listener."
}
]
} ,
"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-670: Always-Incorrect Control Flow Implementation"
}
]
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}
]
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} ,
"references" : {
"reference_data" : [
{
"name" : "https://github.com/envoyproxy/envoy/security/advisories/GHSA-7r5p-7fmh-jxpg" ,
"refsource" : "CONFIRM" ,
"url" : "https://github.com/envoyproxy/envoy/security/advisories/GHSA-7r5p-7fmh-jxpg"
} ,
{
"name" : "https://github.com/envoyproxy/envoy/commit/177d608155ba8b11598b9bbf8240e90d8c350682" ,
"refsource" : "MISC" ,
"url" : "https://github.com/envoyproxy/envoy/commit/177d608155ba8b11598b9bbf8240e90d8c350682"
}
]
} ,
"source" : {
"advisory" : "GHSA-7r5p-7fmh-jxpg" ,
"discovery" : "UNKNOWN"
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}
}