| Name | CVE-2018-12247 |
| Description | 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). |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| mruby (PTS) | bullseye | 2.1.2-3 | fixed |
| bookworm | 3.1.0-3 | fixed | |
| sid, trixie | 3.3.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| mruby | source | (unstable) | (not affected) |
- mruby <not-affected> (Vulnerable code introduced later)
Introduced by: https://github.com/mruby/mruby/commit/f408143c289b8017883294f13d36d43b50c8bc5d
Fixed by: https://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2
https://github.com/mruby/mruby/issues/4036