ruby-kramdown vulnerability

A security issue affects these releases of Ubuntu and its
derivatives:

* Ubuntu 20.04 LTS

Summary

kramdown could be made to crash, run programs, or leak sensitive
information if it opened a specially crafted file.

Software Description

* ruby-kramdown - Fast, pure-Ruby Markdown-superset converter -
ruby library

Details

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

Update instructions

The problem can be corrected by updating your system to the
following package versions:

Ubuntu 20.04 LTS
kramdown - 1.17.0-4ubuntu0.1
ruby-kramdown - 1.17.0-4ubuntu0.1

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary
changes.

References

* CVE-2020-14001

--- Mystic BBS v1.12 A46 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)