Description (CNA)
Rubygems.org is the Ruby community's gem hosting service. A Gem publisher can cause a Remote DoS when publishing a Gem. This is due to how Ruby reads the Manifest of Gem files when using Gem::Specification.from_yaml. from_yaml makes use of SafeYAML.load which allows YAML aliases inside the YAML-based metadata of a gem. YAML aliases allow for Denial of Service attacks with so-called `YAML-bombs` (comparable to Billion laughs attacks). This was patched. There is is no action required by users. This issue is also tracked as GHSL-2024-001 and was discovered by the GitHub security lab.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| rubygems / rubygems.org | affected < 2024-04-12 |
CWE
CWE-400
References
- https://github.com/rubygems/rubygems.org/security/advisories/GHSA-4vc5-whwr-7hh2
- https://en.wikipedia.org/wiki/Billion_laughs_attack
- https://github.com/ruby/ruby/blob/7cf74a2ff28b1b4c26e367d0d67521f7e1fed239/lib/rubygems/safe_yaml.rb#L28
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.