A Use of an Uninitialized Resource vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, authenticated attacker with low privileges to cause a Denial of Service (DoS). On all Junos OS and Junos OS Evolved platforms, in a Multicast only Fast Reroute (MoFRR) scenario, the rpd process can crash when a a specific low privileged CLI command is executed. The rpd crash will impact all routing protocols until the process has automatically been restarted. As the operational state which makes this issue exploitable is outside the attackers control, this issue is considered difficult to exploit. Continued execution of this command will lead to a sustained DoS. This issue affects: Juniper Networks Junos OS 19.4 version 19.4R3-S5 and late
The following software releases have been updated to resolve this specific issue: Junos OS: 19.4R3-S9, 20.2R3-S7, 20.3R3-S5, 20.4R3-S6, 21.1R3-S4, 21.2R3-S2, 21.3R3-S1, 21.4R3, 22.1R1-S2, 22.1R2, 22.2R2, 22.3R1, and all subsequent releases; Junos OS Evolved: 20.4R3-S6-EVO, 21.3R3-S1-EVO, 21.4R3-EVO, 22.1R1-S2-EVO, 22.1R2-EVO, 22.2R2-EVO, 22.3R1-EVO , and all subsequent releases.
There are no known workarounds for this issue.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Juniper Networks Junos OS | >=19.4R3-S4<19.4* | 19.4* | advisory ↗ |
| Juniper Networks Junos OS | >=20.1R2<20.1* | 20.1* | advisory ↗ |
| Juniper Networks Junos OS | >=20.2<20.2R3-S7 | 20.2R3-S7 | advisory ↗ |
| Juniper Networks Junos OS | >=20.3<20.3R3-S5 | 20.3R3-S5 | advisory ↗ |
| Juniper Networks Junos OS | >=20.4<20.4R3-S6 | 20.4R3-S6 | advisory ↗ |
| Juniper Networks Junos OS | >=21.1<21.1R3-S4 | 21.1R3-S4 | advisory ↗ |
| Juniper Networks Junos OS | >=21.2<21.2R3-S2 | 21.2R3-S2 | advisory ↗ |
| Juniper Networks Junos OS | >=21.3<21.3R3-S1 | 21.3R3-S1 | advisory ↗ |
| Juniper Networks Junos OS | >=21.4<21.4R3 | 21.4R3 | advisory ↗ |
| Juniper Networks Junos OS | >=22.1<22.1R1-S2, 22.1R2 | 22.1R1-S2, 22.1R2 | advisory ↗ |
| Juniper Networks Junos OS | >=22.2<22.2R2 | 22.2R2 | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=unspecified<20.4R3-S6-EVO | 20.4R3-S6-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=21.1<21.1* | 21.1* | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=21.2<21.2* | 21.2* | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=21.3<21.3R3-S1-EVO | 21.3R3-S1-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=21.4<21.4R3-EVO | 21.4R3-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=22.1<22.1R1-S2-EVO, 22.1R2-EVO | 22.1R1-S2-EVO, 22.1R2-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=22.2<22.2R2-EVO | 22.2R2-EVO | advisory ↗ |