An Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause DoS (Denial of Service).

If another router generates more than one specific valid OSPFv3 LSA then rpd will crash while processing these LSAs. This issue only affects systems configured with OSPFv3, while OSPFv2 is not affected.

This issue affects:

Juniper Networks Junos OS

• 19.2 versions 19.2R2 and later versions prior to 19.2R3-S6;
• 19.4 versions prior to 19.4R2-S8, 19.4R3-S9;
• 19.3 version 19.3R2 and later versions;
• 20.2 versions prior to 20.2R3-S5;
• 20.1 version 20.1R1 and later versions;
• 20.3 versions prior to 20.3R3-S5;
• 20.4 versions prior to 20.4R3-S4;
• 21.1 versions prior to 21.1R3-S2;
• 21.2 versions prior to 21.2R3-S1;
• 21.3 versions prior to 21.3R3-S2;
• 21.4 versions prior to 21.4R2.

Juniper Networks Junos OS Evolved

• All versions prior to 20.4R3-S5-EVO;
• 21.1-EVO versions prior to 21.1R3-S2-EVO;
• 21.2-EVO versions prior to 21.2R3-S1-EVO;
• 21.3-EVO versions prior to 21.3R3-S2-EVO;
• 21.4-EVO versions prior to 21.4R2-EVO;
• 22.1-EVO versions prior to 22.1R2-EVO;
• 22.2-EVO versions prior to 22.2R2-EVO.

This issue does not affect Juniper Networks Junos OS 19.2 versions prior to 19.2R2.

For a system to be affected the following minimal OSPFv3 configuration needs to be present:

This issue was seen during production usage.

This issue has been assigned CVE-2022-22230.

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

Junos OS: 19.2R3-S6, 19.4R2-S8, 19.4R3-S9, 20.2R3-S5, 20.3R3-S5, 20.4R3-S4, 21.1R3-S2, 21.2R3-S1, 21.3R3-S2, 21.4R2, 22.1R2, 22.3R1 and all subsequent releases.

Junos OS Evolved: 20.4R3-S5-EVO, 21.1R3-S2-EVO, 21.2R3-S1-EVO, 21.3R3-S2-EVO, 21.4R2-EVO, 22.1R2-EVO, 22.2R2-EVO, 22.3R1-EVO and all subsequent releases.

This issue is being tracked as PR 1645221 which is visible on the Customer Support website.

Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).

IMPLEMENTATION:

Software Releases, patches and updates are available at https://support.juniper.net/support/downloads/.

• 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 Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team
• CVE-2022-22230 at cve.mitre.org