Ubuntu alert USN-4562-1 (ruby-kramdown)

From:
             
 
Mike Salvatore <mike.salvatore@canonical.com>
To:
             
 
ubuntu-security-announce@lists.ubuntu.com
Subject:
             
 
[USN-4562-1] kramdown vulnerability
Date:
             
 
Wed, 30 Sep 2020 18:02:04 -0400
Message-ID:
             
 
<b7f57afa-ce77-7436-570e-8e47a72fea0f@canonical.com>
==========================================================================
Ubuntu Security Notice USN-4562-1
September 30, 2020

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

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

References:
  https://usn.ubuntu.com/4562-1
  CVE-2020-14001

Package Information:
  https://launchpad.net/ubuntu/+source/ruby-kramdown/1.17.0...

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