CVE-2024-34392: libxmljs vulnerable to type confusion when parsing specially crafted XML

May 2, 2024 (updated November 18, 2024)

libxmljs is vulnerable to a type confusion vulnerability when parsing a specially crafted XML while invoking the namespaces() function (which invokes _wrap__xmlNode_nsDef_get()) on a grand-child of a node that refers to an entity. This vulnerability can lead to denial of service and remote code execution.

References

github.com/advisories/GHSA-mg49-jqgw-gcj6
github.com/libxmljs/libxmljs
github.com/libxmljs/libxmljs/issues/646
nvd.nist.gov/vuln/detail/CVE-2024-34392
research.jfrog.com/vulnerabilities/libxmljs-namespaces-type-confusion-rce-jfsa-2024-001034096

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