CVE-2024-21594

<br /> A Heap-based Buffer Overflow vulnerability in the Network Services Daemon (NSD) of Juniper Networks Junos OS allows authenticated, low privileged, local attacker to cause a Denial of Service (DoS).<br /> <br /> On an SRX 5000 Series device, when executing a specific command repeatedly, memory is corrupted, which leads to a Flow Processing Daemon (flowd) crash.<br /> <br /> The NSD process has to be restarted to restore services.<br /> <br /> If this issue occurs, it can be checked with the following command:<br /> <br /> user@host&gt; request security policies check<br /> The following log message can also be observed:<br /> <br /> Error: policies are out of sync for PFE node.fpc.pic.<br /> This issue affects:<br /> <br /> Juniper Networks Junos OS on SRX 5000 Series<br /> <br /> <br /> <br /> * All versions earlier than 20.4R3-S6;<br /> * 21.1 versions earlier than 21.1R3-S5;<br /> * 21.2 versions earlier than 21.2R3-S4;<br /> * 21.3 versions earlier than 21.3R3-S3;<br /> * 21.4 versions earlier than 21.4R3-S3;<br /> * 22.1 versions earlier than 22.1R3-S1;<br /> * 22.2 versions earlier than 22.2R3;<br /> * 22.3 versions earlier than 22.3R2.<br /> <br /> <br /> <br /> <br /> <br /> <br />