VDB
CVE-2024-35221
CVE-2024-35221
PUBLISHED
CVSS 4.300000190734863 MEDIUM
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.
EPSS 0.05% · 16.2th percentile
Risk Scores
CVSS 3.1
4.300000190734863
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS Score
0.05%
16.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| rubygems | rubygems.org | < 2024-04-12 |
Exploit Intelligence
- CIRCL seen: CVE-2024-35221 (circl-sighting)
- CIRCL seen: CVE-2024-35221 (circl-sighting)
- https://github.com/rubygems/rubygems.org/security/advisories/GHSA-4vc5-whwr-7hh2 (circl)
- https://github.com/ruby/ruby/blob/7cf74a2ff28b1b4c26e367d0d67521f7e1fed239/lib/rubygems/safe_yaml.rb#L28 (circl)
- https://en.wikipedia.org/wiki/Billion_laughs_attack (cve.org)
Timeline
- May 29, 2024 CVE Published
- May 30, 2024 EPSS Score
- Jun 22, 2024 EPSS Score
- Jul 16, 2024 EPSS Score
- Aug 2, 2024 CVE Updated
- Aug 8, 2024 EPSS Score
- Sep 1, 2024 EPSS Score
- Sep 24, 2024 EPSS Score
- Oct 4, 2024 Coalition ESS Score
- Oct 17, 2024 EPSS Score
- Nov 10, 2024 EPSS Score
- Dec 4, 2024 EPSS Score