Fix undefined host software error (#4495)

frontend/pages/hosts/HostDetailsPage/HostDetailsPage.tsx

@@ -298,8 +298,8 @@ const HostDetailsPage = ({
           }
           return; // exit early because refectch is pending so we can avoid unecessary steps below
         }
-        setHostSoftware(returnedHost.software);
-        setUsersState(returnedHost.users);
+        setHostSoftware(returnedHost.software || []);
+        setUsersState(returnedHost.users || []);
         if (returnedHost.pack_stats) {
           const packStatsByType = returnedHost.pack_stats.reduce(
             (

frontend/pages/hosts/HostDetailsPage/SoftwareTab/SoftwareTab.tsx

@@ -64,7 +64,7 @@ const SoftwareTable = ({
     <div className="section section--software">
       <p className="section__header">Software</p>
 
-      {software.length ? (
+      {software?.length ? (
         <>
           {software && <SoftwareVulnCount softwareList={software} />}
           {software && (