Use After Free Affecting nokogiri package, versions <1.18.3
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUBY-NOKOGIRI-8732779
- published19 Feb 2025
- disclosed18 Feb 2025
- creditUnknown
Introduced: 18 Feb 2025
CVE-2024-56171 (opens in a new tab)How to fix?
Upgrade nokogiri to version 1.18.3 or higher.
Overview
nokogiri is a gem for parsing HTML, XML, SAX, and Reader.
Affected versions of this package are vulnerable to Use After Free in the xmlSchemaItemListAdd() function in xmlschemas.c, which is exploitable by supplying a malicious .xsd schema for validation. it may also be exploitable when an xsd:keyref is provided in combination with recursively defined types that have additional identity constraints, for validation against a non malicious schema.