Ruby Permissions Privileges and Access Controls Vulnerability - CVE-2012-4466
Ruby 1.8.7 before patchlevel 371 1.9.3 before patchlevel 286 and 2.0 before revision r37068 allows context-dependent attackers to bypass safe-level restrictions and modify untainted strings via the name_err_mesg_to_str API function which marks the string as tainted a different vulnerability than CVE-2011-1005.