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CVE-2021-28834

Published: 19 March 2021

Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
kramdown
Launchpad, Ubuntu, Debian
jammy Does not exist

kinetic Does not exist

impish Does not exist

bionic Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

lunar Does not exist

ruby-kramdown-rfc2629
Launchpad, Ubuntu, Debian
jammy Not vulnerable
(ruby-kramdown only)
kinetic Ignored
(end of life, was needs-triage)
bionic Not vulnerable
(ruby-kramdown only)
focal Not vulnerable
(ruby-kramdown only)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
trusty Does not exist

upstream Needs triage

impish Ignored
(end of life)
lunar Not vulnerable
(ruby-kramdown only)
xenial Not vulnerable
(ruby-kramdown only)
ruby-kramdown
Launchpad, Ubuntu, Debian
kinetic Ignored
(end of life, was needs-triage)
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
trusty Does not exist

impish Ignored
(end of life)
bionic Not vulnerable
(introduced in 1.16.0)
focal
Released (1.17.0-4ubuntu0.2)
jammy Not vulnerable
(2.3.1-4)
lunar Not vulnerable
(2.4.0-2)
upstream
Released (2.3.1)
xenial Not vulnerable
(introduced in 1.16.0)

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H