Parameter Entity Reference Vulnerability in libxml2 by GNOME
CVE-2017-16931

9.8CRITICAL

Key Information:

Vendor: Xmlsoft
Status: Libxml2
Vendor: CVE Published:; 23 November 2017

What is CVE-2017-16931?

A vulnerability exists in libxml2 that arises from improper handling of parameter-entity references. Specifically, the issue occurs in the parser.c file before version 2.9.5, where the NEXTL macro incorrectly calls the xmlParserHandlePEReference function for '%' characters in a Document Type Definition (DTD) name. This flaw may have significant implications for applications that rely on xml parsing, potentially leading to unauthorized access or manipulation of data.