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CVE-2020-14001

Published: 17 July 2020

The kramdown gem before 2.3.0 for Ruby processes the template option inside Kramdown documents by default, which allows unintended read access (such as template="/etc/passwd") or unintended embedded Ruby code execution (such as a string that begins with template="string://<%= `). NOTE: kramdown is used in Jekyll, GitLab Pages, GitHub Pages, and Thredded Forum.

From the Ubuntu security team

It was discovered that kramdown insecurely handled certain crafted input. An attacker could use this vulnerability to read restricted files or execute arbitrary code.

Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
ruby-kramdown
Launchpad, Ubuntu, Debian
bionic Needed

focal
Released (1.17.0-4ubuntu0.1)
groovy
Released (1.17.0-4ubuntu0.20.10.1)
hirsute
Released (2.3.0-4)
impish
Released (2.3.0-4)
jammy
Released (2.3.0-4)
precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Ignored
(end of standard support, was needed)