An Improper Validation of Syntactic Correctness of Input vulnerability in Routing Protocol Daemon (rpd) Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS). When a malformed BGP UPDATE packet is received over an established BGP session, the rpd crashes and restarts. This issue affects both eBGP and iBGP implementations. This issue affects: Juniper Networks Junos OS * 21.4 versions prior to 21.4R3-S4; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S2, 22.3R3; * 22.4 versions prior to 22.4R2-S1, 22.4R3; * 23.2 versions prior to 23.2R1, 23.2R2; Juniper Networks Junos OS Evolved * 21.4 versions prior to 21.4R3-S5-EVO; *
The following software releases have been updated to resolve this specific issue: Junos OS: 21.4R3-S4, 22.1R3-S3, 22.2R3-S2, 22.3R2-S2, 22.3R3, 22.4R2-S1, 22.4R3, 23.1R2, 23.2R1, 23.2R2, 23.3R1 and all subsequent releases. Junos OS Evolved: 22.1R3-S3-EVO, 22.3R2-S2-EVO, 22.4R3-EVO, 23.1R2-EVO, 23.2R2-EVO, 23.3R1-EVO and all subsequent releases.
There are no known workarounds for this issue.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Juniper Networks Junos OS | >=21.4<21.4R3-S4 | 21.4R3-S4 | advisory ↗ |
| Juniper Networks Junos OS | >=22.1<22.1R3-S3 | 22.1R3-S3 | advisory ↗ |
| Juniper Networks Junos OS | >=22.2<22.2R3-S2 | 22.2R3-S2 | advisory ↗ |
| Juniper Networks Junos OS | >=22.3<22.3R2-S2, 22.3R3 | 22.3R2-S2, 22.3R3 | advisory ↗ |
| Juniper Networks Junos OS | >=22.4<22.4R2-S1, 22.4R3 | 22.4R2-S1, 22.4R3 | advisory ↗ |
| Juniper Networks Junos OS | >=23.2<23.2R1, 23.2R2 | 23.2R1, 23.2R2 | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=21.4-EVO<21.4R3-S5-EVO | 21.4R3-S5-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=22.1-EVO<22.1R3-S3-EVO | 22.1R3-S3-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=22.2-EVO<22.2R3-S3-EVO | 22.2R3-S3-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=22.3-EVO<22.3R2-S2-EVO | 22.3R2-S2-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=22.4-EVO<22.4R3-EVO | 22.4R3-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=23.2-EVO<23.2R2-EVO | 23.2R2-EVO | advisory ↗ |