CVE-2024-21596

<br /> A Heap-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS).<br /> <br /> If an attacker sends a specific BGP UPDATE message to the device, this will cause a memory overwrite and therefore an RPD crash and restart in the backup Routing Engine (RE). Continued receipt of these packets will cause a sustained Denial of Service (DoS) condition in the backup RE.<br /> <br /> The primary RE is not impacted by this issue and there is no impact on traffic.<br /> <br /> This issue only affects devices with NSR enabled.<br /> <br /> Note: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability.<br /> This issue requires an attacker to have an established BGP session to a system affected by the issue. This issue affects both eBGP and iBGP implementations.<br /> <br /> This issue affects:<br /> <br /> Juniper Networks Junos OS<br /> <br /> <br /> <br /> * All versions earlier than 20.4R3-S9;<br /> * 21.2 versions earlier than 21.2R3-S7;<br /> * 21.3 versions earlier than 21.3R3-S5;<br /> * 21.4 versions earlier than 21.4R3-S5;<br /> * 22.1 versions earlier than 22.1R3-S4;<br /> * 22.2 versions earlier than 22.2R3-S2;<br /> * 22.3 versions earlier than 22.3R3-S1;<br /> * 22.4 versions earlier than 22.4R2-S2, 22.4R3;<br /> * 23.1 versions earlier than 23.1R2;<br /> * 23.2 versions earlier than 23.2R1-S2, 23.2R2.<br /> <br /> <br /> <br /> <br /> Juniper Networks Junos OS Evolved<br /> <br /> <br /> <br /> * All versions earlier than 21.3R3-S5-EVO;<br /> * 21.4-EVO versions earlier than 21.4R3-S5-EVO;<br /> * 22.1-EVO versions earlier than 22.1R3-S4-EVO;<br /> * 22.2-EVO versions earlier than 22.2R3-S2-EVO;<br /> * 22.3-EVO versions later than 22.3R1-EVO;<br /> * 22.4-EVO versions earlier than 22.4R2-S2-EVO, 22.4R3-EVO;<br /> * 23.1-EVO versions earlier than 23.1R2-EVO;<br /> * 23.2-EVO versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO.<br /> <br /> <br /> <br /> <br /> <br /> <br />