CVE-2021-28834

Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.
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
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 79%
VendorProductVersion
kramdown_projectkramdown
𝑥
< 2.3.1
debiandebian_linux
10.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
ruby-kramdown
bullseye
2.3.0-5
fixed
stretch
not-affected
sid
2.4.0-2
fixed
trixie
2.4.0-2
fixed
bookworm
2.4.0-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
kramdown
lunar
dne
kinetic
dne
jammy
dne
impish
dne
hirsute
dne
groovy
dne
focal
dne
bionic
dne
xenial
dne
trusty
dne
ruby-kramdown
lunar
not-affected
kinetic
ignored
jammy
not-affected
impish
ignored
hirsute
ignored
groovy
ignored
focal
Fixed 1.17.0-4ubuntu0.2
released
bionic
not-affected
xenial
not-affected
trusty
dne
ruby-kramdown-rfc2629
lunar
not-affected
kinetic
ignored
jammy
not-affected
impish
ignored
hirsute
ignored
groovy
ignored
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne