CVE Vulnerabilities


Unchecked Return Value

Published: Oct 18, 2022 | Modified: Jun 27, 2023
CVSS 3.x
CVSS 2.x

An Unchecked Return Value to NULL Pointer Dereference vulnerability in Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a locally authenticated attacker with low privileges to cause a Denial of Service (DoS). In Segment Routing (SR) to Label Distribution Protocol (LDP) interworking scenario, configured with Segment Routing Mapping Server (SRMS) at any node, when an Area Border Router (ABR) leaks the SRMS entries having S flag set from IS-IS Level 2 to Level 1, an rpd core might be observed when a specific low privileged CLI command is issued. This issue affects: Juniper Networks Junos OS 21.4 versions prior to 21.4R1-S2, 21.4R2-S1, 21.4R3; 22.1 versions prior to 22.1R2. Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R1-S2-EVO, 21.4R2-S1-EVO, 21.4R3-EVO; 22.1-EVO versions prior to 22.1R2-EVO. This issue does not affect: Juniper Networks Junos OS versions prior to 21.4R1. Juniper Networks Junos OS Evolved versions prior to 21.4R1-EVO.


The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.

Affected Software

Name Vendor Start Version End Version
Junos Juniper 21.4 (including) 21.4 (including)
Junos Juniper 21.4-r1 (including) 21.4-r1 (including)
Junos Juniper 21.4-r1-s1 (including) 21.4-r1-s1 (including)
Junos Juniper 21.4-r2 (including) 21.4-r2 (including)
Junos Juniper 22.1-r1 (including) 22.1-r1 (including)
Junos Juniper 22.1-r1-s1 (including) 22.1-r1-s1 (including)
Junos_os_evolved Juniper 21.4 (including) 21.4 (including)
Junos_os_evolved Juniper 21.4-r1 (including) 21.4-r1 (including)
Junos_os_evolved Juniper 21.4-r1-s1 (including) 21.4-r1-s1 (including)
Junos_os_evolved Juniper 21.4-r2 (including) 21.4-r2 (including)
Junos_os_evolved Juniper 22.1-r1 (including) 22.1-r1 (including)

Potential Mitigations