description: The HTTP Alternative Services header, Alt-Svc, can be used by a malicious site to scan all TCP ports of any host that the accessible to a user when web content is loaded. This vulnerability affects Firefox < 68.
problem types: Port scanning through Alt-Svc header
affected:
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 68, status: affected, version: unspecified, versionType: custom
}