title: Junos OS and Junos OS Evolved: An rpd core will be observed with proxy BGP route-target filtering enabled and certain route add and delete event happening
description: An Operation on a Resource after Expiration or Release vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker with an established BGP session to cause a Denial of Service (DoS). This issue occurs when proxy-generate route-target filtering is enabled, and certain proxy-route add and delete events are happening. This issue affects: Juniper Networks Junos OS All versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S8, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S2, 20.3R2. Juniper Networks Junos OS Evolved All versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R3-EVO; 20.3 versions prior to 20.3R2-EVO.
problem types: CWE-672 Operation on a Resource after Expiration or Release
affected:
{
product: Junos OS
vendor: Juniper Networks
versions:
lessThan: 17.3R3-S11, status: affected, version: unspecified, versionType: custom
lessThan: 17.4R2-S13, 17.4R3-S4, status: affected, version: 17.4, versionType: custom
lessThan: 18.3R3-S4, status: affected, version: 18.3, versionType: custom
lessThan: 18.4R1-S8, 18.4R2-S8, 18.4R3-S6, status: affected, version: 18.4, versionType: custom
lessThan: 19.1R3-S4, status: affected, version: 19.1, versionType: custom
lessThan: 19.2R1-S6, 19.2R3-S2, status: affected, version: 19.2, versionType: custom
lessThan: 19.3R2-S6, 19.3R3-S1, status: affected, version: 19.3, versionType: custom
lessThan: 19.4R1-S4, 19.4R2-S4, 19.4R3, status: affected, version: 19.4, versionType: custom
lessThan: 20.1R2, status: affected, version: 20.1, versionType: custom
lessThan: 20.2R2, status: affected, version: 20.2, versionType: custom
lessThan: 20.3R1-S2, 20.3R2, status: affected, version: 20.3, versionType: custom
}
{
product: Junos OS Evolved
vendor: Juniper Networks
versions:
lessThan: 20.1R3-EVO, status: affected, version: unspecified, versionType: custom
lessThan: 20.2R3-EVO, status: affected, version: 20.2, versionType: custom
lessThan: 20.3R2-EVO, status: affected, version: 20.3, 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
]
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: 17.3R3-S11, 17.4R2-S13, 17.4R3-S4, 18.3R3-S4, 18.4R1-S8, 18.4R2-S8, 18.4R3-S6, 19.1R3-S4, 19.2R1-S6, 19.2R3-S2, 19.3R2-S6, 19.3R3-S1, 19.4R1-S4, 19.4R2-S4, 19.4R3, 20.1R2, 20.2R2, 20.3R1-S2, 20.3R2, 20.4R1, and all subsequent releases;
Junos OS Evolved: 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO, 20.4R1-EVO, and all subsequent releases.
workarounds: There are no viable workarounds for this issue.