Vulnerability Details CVE-2018-12247
An issue was discovered in mruby 1.4.1. There is a NULL pointer dereference in mrb_class, related to certain .clone usage, because mrb_obj_clone in kernel.c copies flags other than the MRB_FLAG_IS_FROZEN flag (e.g., the embedded flag).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.7%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References