xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation. The Nokogiri RubyGem has patched its vendored copy of libxml2 in order to prevent this issue from affecting nokogiri.
{ "nvd_published_at": "2020-01-21T23:15:00Z", "cwe_ids": [ "CWE-835" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2020-02-18T18:58:16Z" }