title: Incorrect configuration handling allows TLS session re-use without re-validation in Envoy
description: Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used. Users are advised to upgrade.
problem types: CWE-295: Improper Certificate Validation
affected:
{
product: envoy
vendor: envoyproxy
versions:
status: affected, version: >= 1.7.0, < 1.18.6
status: affected, version: >= 1.19.0, < 1.19.3
status: affected, version: >= 1.20.0, < 1.20.2
status: affected, version: >= 1.21.0, < 1.21.1
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 7.4
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
version: 3.1
]