In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Continued receipt of these types of valid BGP update packets will cause an extended Denial of Service condition. RPD will require a restart to recover. An indicator of compromise is to see if the file rpd.re exists by issuing the command: show system core-dumps This issue affects: Juniper Networks Junos OS Evolved 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S2-EVO, 20.1R2-S1-EVO. This issue does not affect Junos OS.
The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 19.4R2-S2-EVO, 20.1R1-S2-EVO, 20.1R2-S1-EVO, 20.2R1-EVO and all subsequent releases.
There are no available workarounds for this issue.
| Product | Vulnerable range | Fixed version | Advisory |
|---|---|---|---|
| Juniper Networks Junos OS Evolved | >=19.4<19.4R2-S2-EVO | 19.4R2-S2-EVO | advisory ↗ |
| Juniper Networks Junos OS Evolved | >=20.1<20.1R1-S2-EVO, 20.1R2-S1-EVO | 20.1R1-S2-EVO, 20.1R2-S1-EVO | advisory ↗ |