CVE-2023-36832

An Improper Handling of Exceptional Conditions vulnerability in packet processing of Juniper Networks Junos OS on MX Series allows an unauthenticated network-based attacker to send specific packets to an Aggregated Multiservices (AMS) interface on the device, causing the packet forwarding engine (PFE) to crash, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.<br /> <br /> This issue is only triggered by packets destined to a local-interface via a service-interface (AMS). AMS is only supported on the MS-MPC, MS-MIC, and MX-SPC3 cards. This issue is not experienced on other types of interfaces or configurations. Additionally, transit traffic does not trigger this issue.<br /> <br /> This issue affects Juniper Networks Junos OS on MX Series:<br /> All versions prior to 19.1R3-S10;<br /> 19.2 versions prior to 19.2R3-S7;<br /> 19.3 versions prior to 19.3R3-S8;<br /> 19.4 versions prior to 19.4R3-S12;<br /> 20.2 versions prior to 20.2R3-S8;<br /> 20.4 versions prior to 20.4R3-S7;<br /> 21.1 versions prior to 21.1R3-S5;<br /> 21.2 versions prior to 21.2R3-S5;<br /> 21.3 versions prior to 21.3R3-S4;<br /> 21.4 versions prior to 21.4R3-S3;<br /> 22.1 versions prior to 22.1R3-S2;<br /> 22.2 versions prior to 22.2R3;<br /> 22.3 versions prior to 22.3R2-S1, 22.3R3;<br /> 22.4 versions prior to 22.4R1-S2, 22.4R2.<br />