title: DoS attack using email
description: An external attacker is able to send a specially crafted email (with many recipients) and trigger a potential DoS of the system
problem types: CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
affected:
{
vendor: OTRS AG
product: OTRS
versions:
version: 7.0.x, status: affected, lessThanOrEqual: 7.0.39, versionType: custom
version: 8.0.x, status: affected, lessThanOrEqual: 8.0.26, versionType: custom
}
{
vendor: OTRS AG
product: ((OTRS)) Community Edition
versions:
version: 6.0.1, status: affected, lessThan: 6.0.x*, versionType: custom
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
]
solutions: Update to OTRS 8.0.26 or OTRS 7.0.38.