First published: Thu Apr 09 2020(Updated: )
Due to a new NDP proxy feature for EVPN leaf nodes introduced in Junos OS 17.4, crafted NDPv6 packets could transit a Junos device configured as a Broadband Network Gateway (BNG) and reach the EVPN leaf node, causing a stale MAC address entry. This could cause legitimate traffic to be discarded, leading to a Denial of Service (DoS) condition. This issue only affects Junos OS 17.4 and later releases. Prior releases do not support this feature and are unaffected by this vulnerability. This issue only affects IPv6. IPv4 ARP proxy is unaffected by this vulnerability. This issue affects Juniper Networks Junos OS: 17.4 versions prior to 17.4R2-S9, 17.4R3 on MX Series; 18.1 versions prior to 18.1R3-S9 on MX Series; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3 on MX Series; 18.2X75 versions prior to 18.2X75-D33, 18.2X75-D411, 18.2X75-D420, 18.2X75-D60 on MX Series; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3 on MX Series; 18.4 versions prior to 18.4R1-S5, 18.4R2-S2, 18.4R3 on MX Series; 19.1 versions prior to 19.1R1-S4, 19.1R2 on MX Series; 19.2 versions prior to 19.2R1-S3, 19.2R2 on MX Series.
Credit: sirt@juniper.net
Affected Software | Affected Version | How to fix |
---|---|---|
Juniper JUNOS | =17.4 | |
Juniper JUNOS | =17.4-r1 | |
Juniper JUNOS | =17.4-r1-s1 | |
Juniper JUNOS | =17.4-r1-s2 | |
Juniper JUNOS | =17.4-r1-s4 | |
Juniper JUNOS | =17.4-r1-s5 | |
Juniper JUNOS | =17.4-r1-s6 | |
Juniper JUNOS | =17.4-r1-s7 | |
Juniper JUNOS | =17.4-r2 | |
Juniper JUNOS | =17.4-r2-s1 | |
Juniper JUNOS | =17.4-r2-s2 | |
Juniper JUNOS | =17.4-r2-s3 | |
Juniper JUNOS | =17.4-r2-s4 | |
Juniper JUNOS | =17.4-r2-s5 | |
Juniper JUNOS | =17.4-r2-s6 | |
Juniper JUNOS | =17.4-r2-s7 | |
Juniper JUNOS | =17.4-r2-s8 | |
Juniper JUNOS | =18.1 | |
Juniper JUNOS | =18.1-r2 | |
Juniper JUNOS | =18.1-r2-s1 | |
Juniper JUNOS | =18.1-r2-s2 | |
Juniper JUNOS | =18.1-r2-s4 | |
Juniper JUNOS | =18.1-r3 | |
Juniper JUNOS | =18.1-r3-s1 | |
Juniper JUNOS | =18.1-r3-s2 | |
Juniper JUNOS | =18.1-r3-s3 | |
Juniper JUNOS | =18.1-r3-s4 | |
Juniper JUNOS | =18.1-r3-s6 | |
Juniper JUNOS | =18.1-r3-s7 | |
Juniper JUNOS | =18.1-r3-s8 | |
Juniper JUNOS | =18.2 | |
Juniper JUNOS | =18.2-r1 | |
Juniper JUNOS | =18.2-r1-s3 | |
Juniper JUNOS | =18.2-r1-s5 | |
Juniper JUNOS | =18.2-r2-s1 | |
Juniper JUNOS | =18.2-r2-s2 | |
Juniper JUNOS | =18.2-r2-s3 | |
Juniper JUNOS | =18.2-r2-s4 | |
Juniper JUNOS | =18.2-r2-s5 | |
Juniper JUNOS | =18.2-r2-s6 | |
Juniper JUNOS | =18.2-r3 | |
Juniper JUNOS | =18.2-r3-s1 | |
Juniper JUNOS | =18.2-r3-s2 | |
Juniper JUNOS | =18.2x75 | |
Juniper JUNOS | =18.2x75 | |
Juniper JUNOS | =18.2x75-d20 | |
Juniper JUNOS | =18.2x75-d30 | |
Juniper JUNOS | =18.3 | |
Juniper JUNOS | =18.3-r1 | |
Juniper JUNOS | =18.3-r1-s1 | |
Juniper JUNOS | =18.3-r1-s2 | |
Juniper JUNOS | =18.3-r1-s3 | |
Juniper JUNOS | =18.3-r1-s4 | |
Juniper JUNOS | =18.3-r1-s5 | |
Juniper JUNOS | =18.3-r1-s6 | |
Juniper JUNOS | =18.3-r2 | |
Juniper JUNOS | =18.3-r2-s1 | |
Juniper JUNOS | =18.3-r2-s2 | |
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-r2 | |
Juniper JUNOS | =18.4-r2-s1 | |
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 | =19.2 | |
Juniper JUNOS | =19.2-r1 | |
Juniper JUNOS | =19.2-r1-s1 | |
Juniper JUNOS | =19.2-r1-s2 | |
Juniper Mx10 | ||
Juniper Mx10000 | ||
Juniper Mx10003 | ||
Juniper Mx104 | ||
Juniper Mx150 | ||
Juniper Mx2008 | ||
Juniper Mx2010 | ||
Juniper Mx2020 | ||
Juniper Mx204 | ||
Juniper Mx240 | ||
Juniper Mx40 | ||
Juniper Mx480 | ||
Juniper Mx5 | ||
Juniper Mx80 | ||
Juniper Mx960 |
The following software releases have been updated to resolve this specific issue: 17.4R2-S9, 17.4R3, 18.1R3-S9, 18.2R2-S7, 18.2R3-S3, 18.2X75-D33, 18.2X75-D411, 18.2X75-D420, 18.2X75-D60, 18.3R1-S7, 18.3R2-S3, 18.3R3, 18.3R3-S1, 18.4R1-S5, 18.4R2-S2, 18.4R3, 19.1R1-S4, 19.1R2, 19.2R1-S3, 19.2R2, 19.3R1, 19.4R1, and all subsequent releases.
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