CVE-2020-15866

mruby through 2.1.2-rc has a heap-based buffer overflow in the mrb_yield_with_class function in vm.c because of incorrect VM stack handling. It can be triggered via the stack_copy function.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 68%
VendorProductVersion
mrubymruby
𝑥
≤ 2.1.1
mrubymruby
2.1.2:rc
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mruby
bullseye
2.1.2-3
fixed
buster
no-dsa
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
bionic
needs-triage
xenial
needs-triage
trusty
dne
Common Weakness Enumeration
References
https://github.com/mruby/mruby/issues/5042
https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html
https://github.com/mruby/mruby/issues/5042
https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html