Description
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. From 3.0.0 through 3.0.15, the t:utf8toUnicode transformation in src/actions/transformations/utf8_to_unicode.cc produces wrong output on i386 architecture because snprintf uses sizeof on a char pointer rather than the length of the unicode buffer, allowing rules that use this transformation to be bypassed on i386 architecture. This issue is fixed in version 3.0.16.
Problem types
CWE-467: Use of sizeof() on a Pointer Type
Product status
References
github.com/...curity/security/advisories/GHSA-qjgm-7gp4-f8qq
github.com/...ommit/edcd010814e234d46e2ec55a0f1078ff9d3032e4
github.com/...p-modsecurity/ModSecurity/releases/tag/v3.0.16