Vulnerability Details : CVE-2021-0250
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.
Vulnerability category: Denial of service
Products affected by CVE-2021-0250
- cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r1-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r1-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r1-s6:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r1-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r1-s7:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r2-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r2-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r3-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:17.4:r2-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r3:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r3-s1:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r3-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos:18.2:r1-s2:*:*:*:*:*:*
- cpe:2.3:o:juniper:junos_os_evolved:19.2:r1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-0250
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-0250
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
Juniper Networks, Inc. |
References for CVE-2021-0250
-
https://kb.juniper.net/JSA11143
2021-04 Security Bulletin: Junos OS and Junos OS Evolved: An attacker sending a specific crafted BGP update message will crash RPD (CVE-2021-0250) - Juniper NetworksVendor Advisory
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