title: Junos OS and Junos OS Evolved: An RPD crash can happen due to an MPLS TE tunnel configuration change on a directly connected router
description: An Incomplete Cleanup vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS). An rpd crash can occur when an MPLS TE tunnel configuration change occurs on a directly connected router. This issue affects: Juniper Networks Junos OS All versions prior to 18.4R2-S7; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2. Juniper Networks Junos OS Evolved All versions prior to 19.2R3-EVO; 19.3 versions prior to 19.3R3-EVO; 19.4 versions prior to 19.4R3-EVO; 20.1 versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R2-EVO.
problem types: CWE-459 Incomplete Cleanup
affected:
{
vendor: Juniper Networks
product: Junos OS
versions:
version: unspecified, lessThan: 18.4R2-S7, status: affected, versionType: custom
version: 19.1, status: affected, lessThan: 19.1R3-S2, versionType: custom
version: 19.2, status: affected, lessThan: 19.2R3, versionType: custom
version: 19.3, status: affected, lessThan: 19.3R3, versionType: custom
version: 19.4, status: affected, lessThan: 19.4R3, versionType: custom
version: 20.1, status: affected, lessThan: 20.1R2, versionType: custom
version: 20.2, status: affected, lessThan: 20.2R2, versionType: custom
}
{
vendor: Juniper Networks
product: Junos OS Evolved
versions:
version: unspecified, lessThan: 19.2R3-EVO, status: affected, versionType: custom
version: 19.3, status: affected, lessThan: 19.3R3-EVO, versionType: custom
version: 19.4, status: affected, lessThan: 19.4R3-EVO, versionType: custom
version: 20.1, status: affected, lessThan: 20.1R3-EVO, versionType: custom
version: 20.2, status: affected, lessThan: 20.2R2-EVO, versionType: custom
}
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:
Junos OS: 18.4R2-S7, 19.1R3-S2, 19.2R3, 19.3R3, 19.4R3, 20.1R2, 20.2R2, 20.3R1, and all subsequent releases.
Junos OS Evolved: 19.2R3-EVO, 19.3R3-EVO, 19.4R3-EVO, 20.1R3-EVO, 20.2R2-EVO, 20.3R1-EVO, and all subsequent releases.
workarounds: Remove 'protocols rsvp interface <interface> link-protection max-bypasses'.