View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2017-10784 medium priority: Ubuntu including 3 source packages (ruby1.9.1, ruby2.0, ruby2.3), 18 status rows across 6 suites (artful, bionic, trusty, upstream, xenial, zesty): DNE 10, released 4, needs-triage 3, ignored 1.
The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.