CVE-2019-18197: Use After Free

October 18, 2019 (updated December 23, 2019)

In xsltCopyText in transform.c in libxslt, which is used by nokogiri, a pointer variable isn’t reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed.

References

nvd.nist.gov/vuln/detail/CVE-2019-18197

Code Behaviors & Features

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