I’m currently doing an assigment where I’m supposed to grab a couple of vulnerabilities related to the following:

Ubuntu Server 20.04.6 LTS
Apache Tomcat 10.0.27
PostgreSQL 14.11
OpenSSL 3.0.13
Django 5.0.3

I need to get a couple of the most recent vulnerabilities and a couple of the highest risk ones that have existed for the specific version mentioned. My question is, how should I go about looking for this type of information, what platform should I be using, what kind of search should I be doing on them? It looks like every time I try to look for something, it just gives out gigantic list with vulnerabilities, making it really hard to filter by their date or their risk.