CVE-2023-36836

Vulnerability Summary

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 later versions before 19.4R3-S9; 20.1 version 20.1R2 and later versions; 20.2 versions before 20.2R3-S7; 20.3 versions before 20.3R3-S5; 20.4 versions before 20.4R3-S6; 21.1 versions before 21.1R3-S4; 21.2 versions before 21.2R3-S2; 21.3 versions before 21.3R3-S1; 21.4 versions before 21.4R3; 22.1 versions before 22.1R1-S2, 22.1R2; 22.2 versions before 22.2R2. Juniper Networks Junos OS Evolved All versions before 20.4R3-S6-EVO; 21.1-EVO version 21.1R1-EVO and later versions; 21.2-EVO version 21.2R1-EVO and later versions; 21.3-EVO versions before 21.3R3-S1-EVO; 21.4-EVO versions before 21.4R3-EVO; 22.1-EVO versions before 22.1R1-S2-EVO, 22.1R2-EVO; 22.2-EVO versions before 22.2R2-EVO.

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