ActiveRecord in Ruby on Rails before 2.3.17 and 3.x before 3.1.0 allows remote attackers to cause a denial of service or execute arbitrary code via crafted serialized attributes that cause the +serialize+ helper to deserialize arbitrary YAML.
{ "nvd_published_at": "2013-02-13T01:55:05Z", "cwe_ids": [ "CWE-502" ], "severity": "CRITICAL", "github_reviewed": true, "github_reviewed_at": "2020-06-16T21:34:43Z" }