An issue has been found in Mini-XML (aka mxml) 2.12. It is a stack-based buffer overflow in mxmlwritenode in mxml-file.c via vectors involving a double-precision floating point number and the '<order type="real">' substring, as demonstrated by testmxml.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20004.json"
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]