title: Denial of Service (DoS)
description: Incorrect handling of Upgrade header with the value websocket leads in crashing of containers hosting sockjs apps. This affects the package sockjs before 0.3.20.
problem types: Denial of Service (DoS)
affected:
{
product: sockjs
vendor: n/a
versions:
lessThan: 0.3.20, status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: NONE
exploitCodeMaturity: PROOF_OF_CONCEPT
integrityImpact: NONE
privilegesRequired: NONE
remediationLevel: OFFICIAL_FIX
reportConfidence: NOT_DEFINED
scope: UNCHANGED
temporalScore: 4.8
temporalSeverity: MEDIUM
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O
version: 3.1
]