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_at": "2020-06-16T21:34:43Z",
"github_reviewed": true
}