Advisories for Gem/Private_address_check package

The private_address_check ruby gem is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is a private address.

The private_address_check ruby gem is vulnerable to a bypass due to an incomplete denylist of common private/local network addresses used to prevent server-side request forgery.

The private_address_check ruby gem is vulnerable to a bypass due to use of Ruby's Resolv.getaddresses method, which is OS-dependent and should not be relied upon for security measures, such as when used to exclude private network addresses to prevent server-side request forgery.