The image scanner is too verbose with unfixed CVEs

The scanner displays unfixed CVEs which results in huge lists of vulnerabilities that are hiding the vulnerabilities which should be really considered. We can make use of the CS_IGNORE_UNFIXED variable to prevent reporting these vulnerabilities which are usually vulnerabilities that doesn't agree upon, or that are being reanalyzed to better understand the problem, etc. We can't take any action by ourselves to fix these vulnerabilities and we'd better focus on vulnerabilities for which fix is available and which that be picked by updating a component.