CVE-2020-6838

EUVD-2020-27981
In mruby 2.1.0, there is a use-after-free in hash_values_at in mrbgems/mruby-hash-ext/src/hash-ext.c.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
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
Base Score
CVSS 3.x
EPSS Score
Percentile: 61%
Affected Products (NVD)
VendorProductVersion
mrubymruby
2.1.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mruby
bookworm
3.1.0-3
fixed
bullseye
2.1.2-3
fixed
sid
3.3.0-1
fixed
trixie
3.3.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mruby
bionic
needs-triage
disco
ignored
eoan
ignored
focal
needs-triage
groovy
ignored
hirsute
ignored
impish
ignored
jammy
needs-triage
kinetic
ignored
lunar
ignored
mantic
ignored
noble
needs-triage
trusty
dne
xenial
needs-triage
Common Weakness Enumeration
References
https://github.com/mruby/mruby/issues/4926
https://github.com/mruby/mruby/issues/4926