The vulnerability of the Oniguruma library, related to writing beyond the buffer boundaries on the stack, allows a hacker to cause a service failure.

The vulnerability of the Oniguruma library exists due to the improper handling of the code position 0xFFFFFFFF in the unicodeunfoldkey function during the compilation of regular expressions. As a result, when the nigencunicodegetcasefoldcodesbystr function is called, 4 bytes will be written at th...

Oniguruma 'onigenc_unicode_get_case_fold_codes_by_str()' function stack buffer overflow vulnerability

mbstring Multi-Byte String is a language encoding extension library in PHP PHP: Hypertext Preprocessor; Oniguruma-mod is a regular expression library in Ruby programming language.Oniguruma is one of the a regular expression engine. A stack buffer overflow vulnerability exists in the...