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).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 50%
VendorProductVersion
mrubymruby
1.4.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mruby
bullseye
2.1.2-3
fixed
bookworm
3.1.0-3
fixed
sid
3.3.0-1
fixed
trixie
3.3.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mruby
noble
needs-triage
mantic
ignored
lunar
ignored
kinetic
ignored
jammy
needs-triage
impish
ignored
hirsute
ignored
groovy
ignored
focal
needs-triage
eoan
ignored
disco
ignored
cosmic
ignored
bionic
needs-triage
artful
ignored
xenial
needs-triage
trusty
dne
Common Weakness Enumeration
References
https://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2
https://github.com/mruby/mruby/issues/4036
https://github.com/mruby/mruby/commit/55edae0226409de25e59922807cb09acb45731a2
https://github.com/mruby/mruby/issues/4036