CVE-2021-0250: Junos OS and Junos OS Evolved: An attacker sending a specific crafted BGP update message will crash RPD
First published: Thu Apr 22 2021(Updated: )
In segment routing traffic engineering (SRTE) environments where the BGP Monitoring Protocol (BMP) feature is enable, a vulnerability in the Routing Protocol Daemon (RPD) process of Juniper Networks Junos OS allows an attacker to send a specific crafted BGP update message causing the RPD service to core, creating a Denial of Service (DoS) Condition. Continued receipt and processing of this update message will create a sustained Denial of Service (DoS) condition. This issue affects IPv4 and IPv6 environments. This issue affects: Juniper Networks Junos OS 17.4 versions 17.4R1 and above prior to 17.4R2-S6, 17.4R3; 18.1 versions prior to 18.1R3-S7; 18.2 versions prior to 18.2R2-S6, 18.2R3-S3; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3; 19.1 versions prior to 19.1R1-S4, 19.1R2; 19.2 versions prior to 19.2R1-S3, 19.2R2, This issue does not affect Junos OS releases prior to 17.4R1. This issue affects: Juniper Networks Junos OS Evolved 19.2-EVO versions prior to 19.2R2-EVO.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper JUNOS | =17.4-r1 | |
| Juniper JUNOS | =17.4-r1-s1 | |
| Juniper JUNOS | =17.4-r1-s2 | |
| Juniper JUNOS | =17.4-r1-s3 | |
| 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 | =18.1 | |
| Juniper JUNOS | =18.1-r1 | |
| 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-s5 | |
| Juniper JUNOS | =18.1-r3-s6 | |
| Juniper JUNOS | =18.2 | |
| Juniper JUNOS | =18.2-r1 | |
| Juniper JUNOS | =18.2-r1 | |
| Juniper JUNOS | =18.2-r1-s2 | |
| Juniper JUNOS | =18.2-r1-s3 | |
| Juniper JUNOS | =18.2-r1-s4 | |
| Juniper JUNOS | =18.2-r1-s5 | |
| Juniper JUNOS | =18.2-r2 | |
| 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-r3 | |
| Juniper JUNOS | =18.2-r3-s1 | |
| Juniper JUNOS | =18.2-r3-s2 | |
| 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 | =18.4-r2-s2 | |
| 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 Junos Os Evolved | =19.2-r1 |
Remedy
The following software releases have been updated to resolve this specific issue: Junos OS: 17.4R2-S6, 17.4R3, 18.1R3-S7, 18.2R2-S6, 18.2R3-S3, 18.3R1-S7, 18.3R2-S3, 18.3R3, 18.4R1-S5, 18.4R2-S3, 18.4R3, 19.1R1-S4, 19.1R2, 19.2R1-S3, 19.2R2, 19.3R1, and all subsequent releases. Junos OS Evolved: 19.2R2-EVO, and all subsequent releases.
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Reference Links
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- vendor/juniper
- canonical/juniper junos
- version/juniper junos/17.4-r1
- version/juniper junos/17.4-r1-s1
- version/juniper junos/17.4-r1-s2
- version/juniper junos/17.4-r1-s3
- version/juniper junos/17.4-r1-s4
- version/juniper junos/17.4-r1-s5
- version/juniper junos/17.4-r1-s6
- version/juniper junos/17.4-r1-s7
- version/juniper junos/17.4-r2
- version/juniper junos/17.4-r2-s1
- version/juniper junos/17.4-r2-s2
- version/juniper junos/17.4-r2-s3
- version/juniper junos/17.4-r2-s4
- version/juniper junos/17.4-r2-s5
- version/juniper junos/18.1
- version/juniper junos/18.1-r1
- version/juniper junos/18.1-r2
- version/juniper junos/18.1-r2-s1
- version/juniper junos/18.1-r2-s2
- version/juniper junos/18.1-r2-s4
- version/juniper junos/18.1-r3
- version/juniper junos/18.1-r3-s1
- version/juniper junos/18.1-r3-s2
- version/juniper junos/18.1-r3-s3
- version/juniper junos/18.1-r3-s4
- version/juniper junos/18.1-r3-s5
- version/juniper junos/18.1-r3-s6
- version/juniper junos/18.2
- version/juniper junos/18.2-r1
- version/juniper junos/18.2-r1-s2
- version/juniper junos/18.2-r1-s3
- version/juniper junos/18.2-r1-s4
- version/juniper junos/18.2-r1-s5
- version/juniper junos/18.2-r2
- version/juniper junos/18.2-r2-s1
- version/juniper junos/18.2-r2-s2
- version/juniper junos/18.2-r2-s3
- version/juniper junos/18.2-r2-s4
- version/juniper junos/18.2-r2-s5
- version/juniper junos/18.2-r3
- version/juniper junos/18.2-r3-s1
- version/juniper junos/18.2-r3-s2
- version/juniper junos/18.3
- version/juniper junos/18.3-r1
- version/juniper junos/18.3-r1-s1
- version/juniper junos/18.3-r1-s2
- version/juniper junos/18.3-r1-s3
- version/juniper junos/18.3-r1-s4
- version/juniper junos/18.3-r1-s5
- version/juniper junos/18.3-r1-s6
- version/juniper junos/18.3-r2
- version/juniper junos/18.3-r2-s1
- version/juniper junos/18.3-r2-s2
- version/juniper junos/18.4
- version/juniper junos/18.4-r1
- version/juniper junos/18.4-r1-s1
- version/juniper junos/18.4-r1-s2
- version/juniper junos/18.4-r1-s3
- version/juniper junos/18.4-r1-s4
- version/juniper junos/18.4-r2
- version/juniper junos/18.4-r2-s1
- version/juniper junos/18.4-r2-s2
- version/juniper junos/19.1
- version/juniper junos/19.1-r1
- version/juniper junos/19.1-r1-s1
- version/juniper junos/19.1-r1-s2
- version/juniper junos/19.1-r1-s3
- version/juniper junos/19.2
- version/juniper junos/19.2-r1
- version/juniper junos/19.2-r1-s1
- version/juniper junos/19.2-r1-s2
- canonical/juniper junos os evolved
- version/juniper junos os evolved/19.2-r1