On Juniper Networks Junos OS and Junos OS Evolved devices configured with BGP origin validation using Resource Public Key Infrastructure (RPKI) receipt of a specific packet from the RPKI cache server may cause routing process daemon (RPD) to crash and restart, creating a Denial of Service (DoS) condition.

Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.

This issue affects:

Juniper Networks Junos OS

• 17.3 versions prior to 17.3R3-S12;
• 17.4 versions prior to 17.4R3-S5;
• 18.1 versions prior to 18.1R3-S13;
• 18.2 versions prior to 18.2R3-S8;
• 18.3 versions prior to 18.3R3-S5;
• 18.4 versions prior to 18.4R2-S8, 18.4R3-S8;
• 19.1 versions prior to 19.1R3-S5;
• 19.2 versions prior to 19.2R3-S2;
• 19.3 versions prior to 19.3R2-S6, 19.3R3-S2;
• 19.4 versions prior to 19.4R2-S4, 19.4R3-S3;
• 20.1 versions prior to 20.1R3;
• 20.2 versions prior to 20.2R3;
• 20.3 versions prior to 20.3R2;
• 20.4 versions prior to 20.4R2.

Juniper Networks Junos OS Evolved

• All versions prior to 20.4R2-S2-EVO.

The config stanza affected by this issue:

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was seen during production usage.

This issue has been assigned CVE-2021-0281 .
 

The following software releases have been updated to resolve this specific issue:

Junos OS: 17.3R3-S12, 17.4R3-S5, 18.1R3-S13, 18.2R3-S8, 18.3R3-S5, 18.4R2-S8, 18.4R3-S8, 19.1R3-S5, 19.2R3-S2, 19.3R2-S6, 19.3R3-S2, 19.4R2-S4, 19.4R3-S3, 20.1R3, 20.2R3, 20.3R2, 20.4R2, 21.1R1 and all subsequent releases.

Junos OS Evolved: 20.4R2-S2-EVO, 21.1R1-EVO, and all subsequent releases.

This issue is being tracked as 1556207 .
 

Software releases or updates are available for download at https://support.juniper.net/support/downloads/
 

There are no viable workarounds for this issue.
 

2021-07-14: Initial Publication.

• KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process [juniper.net]
• KB16765: In which releases are vulnerabilities fixed? [juniper.net]
• KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories [juniper.net]
• Report a Vulnerability - How to Contact the Juniper Networks Security Incident Response Team
• CVE-2021-0281: Specific packets can trigger rpd crash when BGP Origin Validation is configured with RPKI