title: Controller stack overflow when decoding messages from the server
description: Controller DoS due to stack overflow when decoding a message from the server
problem types: CWE-116 Improper Encoding or Escaping of Output
affected:
{
defaultStatus: unaffected
platforms: Experion PKS
product: C300
vendor: Honeywell
versions:
lessThanOrEqual: 501.6HF8, status: affected, version: 501.1, versionType: semver
lessThanOrEqual: 510.2HF12, status: affected, version: 510.1, versionType: semver
lessThanOrEqual: 511.5TCU3, status: affected, version: 511.1, versionType: semver
lessThanOrEqual: 520.1TCU4, status: affected, version: 520.1, versionType: semver
lessThanOrEqual: 520.2TCU2, status: affected, version: 520.2, versionType: semver
}
{
defaultStatus: unaffected
platforms: [Experion LX, Experion PlantCruise]
product: C300
vendor: Honeywell
versions:
lessThanOrEqual: 511.5TCU3, status: affected, version: 510.1, versionType: semver
lessThanOrEqual: 520.1TCU4, status: affected, version: 520.1, versionType: semver
lessThanOrEqual: 520.2TCU2, status: affected, version: 520.2, versionType: semver
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 9.8
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
format: CVSS
scenarios: GENERAL