CVE-2015-1855

CVE-2015-1855 affects Ruby’s OpenSSL hostname matching: the OpenSSL extension fails to validate hostnames, allowing server spoofing. Affected: Ruby/OpenSSL before 2.0.0 patchlevel 645; 2.1.x before 2.1.6; 2.2.x before 2.2.2. Root cause: permissive hostname matching (wildcards, IDNA, case, non‑ASC...