title: Junos OS: QFX10002: Failure of storm control feature may lead to Denial of Service
description: An Improper Check or Handling of Exceptional Conditions within the storm control feature of Juniper Networks Junos OS allows an attacker sending a high rate of traffic to cause a Denial of Service. Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. Storm control monitors the level of applicable incoming traffic and compares it with the level specified. If the combined level of the applicable traffic exceeds the specified level, the switch drops packets for the controlled traffic types. This issue affects Juniper Networks Junos OS on QFX10002: All versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S11; 20.2 versions prior to 20.2R3-S6; 20.4 versions prior to 20.4R3-S5; 21.1 versions prior to 21.1R3-S4; 21.2 versions prior to 21.2R3-S3; 21.3 versions prior to 21.3R3; 21.4 versions prior to 21.4R2.
problem types: CWE-703 Improper Check or Handling of Exceptional Conditions
affected:
{
vendor: Juniper Networks
product: Junos OS
versions:
version: unspecified, lessThan: 19.3R3-S7, status: affected, versionType: custom
version: 19.4, status: affected, lessThan: 19.4R3-S11, versionType: custom
version: 20.2, status: affected, lessThan: 20.2R3-S6, versionType: custom
version: 20.4, status: affected, lessThan: 20.4R3-S5, versionType: custom
version: 21.1, status: affected, lessThan: 21.1R3-S4, versionType: custom
version: 21.2, status: affected, lessThan: 21.2R3-S3, versionType: custom
version: 21.3, status: affected, lessThan: 21.3R3, versionType: custom
version: 21.4, status: affected, lessThan: 21.4R2, versionType: custom
platforms: QFX10002
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
attackVector: ADJACENT_NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
baseScore: 6.5
baseSeverity: MEDIUM
]
exploits: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
solutions: The following software releases have been updated to resolve this specific issue: 19.3R3-S7, 19.4R3-S11, 20.2R3-S6, 20.4R3-S5, 21.1R3-S4, 21.2R3-S3, 21.3R3, 21.4R2, 22.1R1 and all subsequent releases.
workarounds: There are no known workarounds for this issue.