CVE-2019-20007

An issue was discovered in ezXML 0.8.2 through 0.8.6. The function
ezxml_str2utf8, while parsing a crafted XML file, performs zero-length
reallocation in ezxml.c, leading to returning a NULL pointer (in some
compilers). After this, the function ezxml_parse_str does not check whether
the s variable is not NULL in ezxml.c, leading to a NULL pointer
dereference and crash (segmentation fault).

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989363&gt;
• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989364&gt;
• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989360&gt;
• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=989361&gt;