CVE-2015-3900

A flaw was found in a way rubygems verified the API endpoint hostname retrieved through a DNS SRV record. A man-in-the-middle attacker could use this flaw to force a client to download content from an untrusted domain.

This issue did not affect the versions of rubygems as shipped with Red Hat Enterprise Linux 6, Red Hat Enterprise MRG 2.5, Red Hat Satellite 6, Red Hat Openstack 5, Red Hat Openshift Enterprise 2 as they did not include support for getting API endpoint using SRV DNS records.

This issue did not affect the versions of ruby as shipped with Red Hat Enterprise Linux 5 and 6 as they did not include support for getting API endpoint using SRV DNS records. The issue did not affect version of ruby as shipped with Red Hat Enterprise Linux 7, as the support for getting API endpoint using SRV DNS records is included, but inactive.

This issue did not affect the versions of ruby193-ruby as shipped with Red Hat Subscription Asset Manager and Red Hat Software Collections as they did not include support for getting API endpoint using SRV DNS records.

The issue did not affect version of ruby200-ruby as shipped with Red Hat Software Collections, as the support for getting API endpoint using SRV DNS records is included, but inactive.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.