CVE-2019-15903

In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.

In libexpat before 2.2.8, crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.

En libexpat versiones anteriores a 2.2.8, una entrada XML especialmente diseñada podría engañar al analizador para que cambie de análisis DTD a análisis de documentos demasiado pronto; una llamada consecutiva a la función XML_GetCurrentLineNumber (o XML_GetCurrentColumnNumber) luego resultó en una lectura excesiva del búfer en la región heap de la memoria.