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.
References
| Link | Resource |
|---|---|
| https://kb.juniper.net/JSA11012 | Vendor Advisory |
| https://kb.juniper.net/JSA11012 | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
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History
21 Nov 2024, 05:11
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : 3.3
v3 : 7.4 |
| References | () https://kb.juniper.net/JSA11012 - Vendor Advisory |
Information
Published : 2020-04-09 23:15
Updated : 2024-11-21 05:11
NVD link : CVE-2020-1633
Mitre link : CVE-2020-1633
CVE.ORG link : CVE-2020-1633
JSON object : View
Products Affected
juniper
- mx2008
- mx40
- mx150
- mx5
- mx960
- mx80
- mx10000
- mx10
- junos
- mx104
- mx10003
- mx2020
- mx2010
- mx240
- mx480
- mx204
CWE