First published: Wed Apr 14 2021(Updated: )
Due to an improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved the Routing Protocol Daemon (RPD) service, upon receipt of a specific matching BGP packet meeting a specific term in the flowspec configuration, crashes and restarts causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects only Multiprotocol BGP (MP-BGP) VPNv6 FlowSpec deployments. This issue affects: Juniper Networks Junos OS: 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: All versions after 18.4R1-EVO prior to 20.3R2-EVO. This issue does not affect: Juniper Networks Junos OS versions prior to 18.4R1. Juniper Networks Junos OS Evolved versions prior to 18.4R1-EVO.
Credit: sirt@juniper.net
Affected Software | Affected Version | How to fix |
---|---|---|
Juniper JUNOS | =18.4 | |
Juniper JUNOS | =18.4-r1 | |
Juniper JUNOS | =18.4-r1-s1 | |
Juniper JUNOS | =18.4-r1-s2 | |
Juniper JUNOS | =18.4-r1-s3 | |
Juniper JUNOS | =18.4-r1-s4 | |
Juniper JUNOS | =18.4-r1-s5 | |
Juniper JUNOS | =18.4-r1-s6 | |
Juniper JUNOS | =18.4-r1-s7 | |
Juniper JUNOS | =18.4-r2 | |
Juniper JUNOS | =18.4-r2-s1 | |
Juniper JUNOS | =18.4-r2-s2 | |
Juniper JUNOS | =18.4-r2-s3 | |
Juniper JUNOS | =18.4-r2-s4 | |
Juniper JUNOS | =18.4-r2-s5 | |
Juniper JUNOS | =18.4-r2-s6 | |
Juniper JUNOS | =18.4-r3 | |
Juniper JUNOS | =18.4-r3-s1 | |
Juniper JUNOS | =18.4-r3-s2 | |
Juniper JUNOS | =18.4-r3-s3 | |
Juniper JUNOS | =18.4-r3-s4 | |
Juniper JUNOS | =18.4-r3-s5 | |
Juniper JUNOS | =18.4-r3-s6 | |
Juniper JUNOS | =19.1 | |
Juniper JUNOS | =19.1-r1 | |
Juniper JUNOS | =19.1-r1-s1 | |
Juniper JUNOS | =19.1-r1-s2 | |
Juniper JUNOS | =19.1-r1-s3 | |
Juniper JUNOS | =19.1-r1-s4 | |
Juniper JUNOS | =19.1-r1-s5 | |
Juniper JUNOS | =19.1-r2 | |
Juniper JUNOS | =19.1-r2-s1 | |
Juniper JUNOS | =19.1-r3 | |
Juniper JUNOS | =19.1-r3-s1 | |
Juniper JUNOS | =19.1-r3-s2 | |
Juniper JUNOS | =19.1-r3-s3 | |
Juniper JUNOS | =19.2 | |
Juniper JUNOS | =19.2-r1 | |
Juniper JUNOS | =19.2-r1-s1 | |
Juniper JUNOS | =19.2-r1-s2 | |
Juniper JUNOS | =19.2-r1-s3 | |
Juniper JUNOS | =19.2-r1-s4 | |
Juniper JUNOS | =19.2-r1-s5 | |
Juniper JUNOS | =19.2-r2 | |
Juniper JUNOS | =19.2-r2-s1 | |
Juniper JUNOS | =19.2-r3 | |
Juniper JUNOS | =19.2-r3-s1 | |
Juniper JUNOS | =19.3 | |
Juniper JUNOS | =19.3-r1 | |
Juniper JUNOS | =19.3-r1-s1 | |
Juniper JUNOS | =19.3-r2 | |
Juniper JUNOS | =19.3-r2-s1 | |
Juniper JUNOS | =19.3-r2-s2 | |
Juniper JUNOS | =19.3-r2-s3 | |
Juniper JUNOS | =19.3-r2-s4 | |
Juniper JUNOS | =19.3-r2-s5 | |
Juniper JUNOS | =19.3-r3 | |
Juniper JUNOS | =19.4-r1 | |
Juniper JUNOS | =19.4-r1-s1 | |
Juniper JUNOS | =19.4-r1-s2 | |
Juniper JUNOS | =19.4-r2 | |
Juniper JUNOS | =19.4-r2-s1 | |
Juniper JUNOS | =19.4-r2-s2 | |
Juniper JUNOS | =19.4-r2-s3 | |
Juniper JUNOS | =19.4-r3 | |
Juniper JUNOS | =20.1-r1 | |
Juniper JUNOS | =20.1-r1-s1 | |
Juniper JUNOS | =20.1-r1-s2 | |
Juniper JUNOS | =20.1-r1-s3 | |
Juniper JUNOS | =20.1-r1-s4 | |
Juniper JUNOS | =20.2-r1 | |
Juniper JUNOS | =20.2-r1-s1 | |
Juniper JUNOS | =20.2-r1-s2 | |
Juniper JUNOS | =20.2-r1-s3 | |
Juniper JUNOS | =20.3-r1 | |
Juniper Junos Os Evolved | =19.1-r1 | |
Juniper Junos Os Evolved | =19.1-r2 | |
Juniper Junos Os Evolved | =19.2-r1 | |
Juniper Junos Os Evolved | =19.2-r2 | |
Juniper Junos Os Evolved | =19.3-r1 | |
Juniper Junos Os Evolved | =19.3-r2 | |
Juniper Junos Os Evolved | =20.1-r1 |
The following software releases have been updated to resolve this specific issue: Junos OS: 18.4R1-S8, 18.4R2-S7, 18.4R3-S7, 19.1R2-S2, 19.1R3-S4, 19.2R1-S6, 19.2R3-S2, 19.3R3-S2, 19.4R2-S4, 19.4R3-S1, 20.1R2, 20.1R3, 20.2R2, 20.2R3, 20.3R1-S1, 20.3R2, 20.4R1 and all subsequent releases. Junos OS Evolved: 20.3R2-EVO, 20.4R1-EVO, and all subsequent releases.
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