This update for squid fixes the following issues: - CVE-2016-10003: Prevent incorrect forwarding of cached private responses when Collapsed Forwarding feature is enabled. This allowed remote attacker to discover private and sensitive information about another user . - CVE-2016-10002: Fixed incorrect processing of responses to If-None-Modified HTTP conditional requests. This allowed responses containing private data to clients it should not have reached . - CVE-2014-9749: Prevent nonce replay in Digest authentication, preventing the reuse of stale auth tokens .