title: Phoenix Contact: FL MGUARD lack of memory release in remote logging functionality
description: In Phoenix Contact FL MGUARD 1102 and 1105 in Versions 1.4.0, 1.4.1 and 1.5.0 the remote logging functionality is impaired by the lack of memory release for data structures from syslog-ng when remote logging is active
problem types: CWE-401 Improper Release of Memory Before Removing Last Reference
affected:
{
product: FL MGUARD
vendor: PHOENIX CONTACT
versions:
lessThan: FL MGUARD 1102 (No. 1153079)*, status: affected, version: 1.4.0, versionType: custom
lessThan: FL MGUARD 1105 (No. 1153078)*, status: affected, version: 1.4.0, versionType: custom
}
metrics:
cvssV3_1: [
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
]
solutions: PHOENIX CONTACT recomments to upgrade to firmware version 1.5.1 (or any later version).
workarounds: To prevent the possibility of an attack, it is recommended to deactivate remote logging.