pf can filter outbound packets but not by application.
[1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8661
[2] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2675
pf can filter outbound packets but not by application.
[1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8661
[2] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2675