title:  Consul Cluster Peering can Result in Denial of Service
description: Consul and Consul Enterprise's cluster peering implementation contained a flaw whereby a peer cluster with service of the same name as a local service could corrupt Consul state, resulting in denial of service. This vulnerability was resolved in Consul 1.14.5, and 1.15.3
problem types: CWE-826: Premature Release of Resource During Expected Lifetime
affected:
{
vendor: HashiCorp
product: Consul
platforms: [64 bit, 32 bit, x86, ARM, MacOS, Windows, Linux]
repo: https://github.com/hashicorp/consul
versions:
status: affected, version: 1.14.0, lessThanOrEqual: 1.14.5, versionType: semver
status: affected, version: 1.15.0, lessThanOrEqual: 1.15.3, versionType: semver
defaultStatus: unaffected
}
{
vendor: HashiCorp
product: Consul Enterprise
platforms: [64 bit, 32 bit, x86, ARM, MacOS, Windows, Linux]
versions:
status: affected, version: 1.14.0, lessThanOrEqual: 1.14.5, versionType: semver
status: affected, version: 1.15.0, lessThanOrEqual: 1.15.3, versionType: semver
defaultStatus: unaffected
}
metrics:
format: CVSS
scenarios: GENERAL
cvssV3_1: [
version: 3.1
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: HIGH
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
baseSeverity: MEDIUM
baseScore: 4.9
vectorString: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
]