In xsltCopyText in transform.c in libxslt 1.1.33, 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.
Nokogiri prior to version 1.10.5 contains a vulnerable version of libxslt. Nokogiri version 1.10.5 upgrades the dependency to libxslt 1.1.34, which contains a patch for this issue.
{
"cwe_ids": [
"CWE-416",
"CWE-908"
],
"github_reviewed": true,
"github_reviewed_at": "2023-07-07T21:30:20Z",
"severity": "HIGH",
"nvd_published_at": "2019-10-18T21:15:00Z"
}