Ubuntu alert USN-4089-1 (ruby-rack)

From:
             
 
Eduardo Barretto <eduardo.barretto@canonical.com> 
To:
             
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
             
 
[USN-4089-1] Rack vulnerability 
Date:
             
 
Wed, 07 Aug 2019 14:46:31 -0300
Message-ID:
             
 
<b5f8483401f30a231f28d1fd05b3a342db8873c8.camel@canonical.com>
==========================================================================
Ubuntu Security Notice USN-4089-1
August 07, 2019

ruby-rack vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Rack could allow cross-site scripting (XSS) attacks.

Software Description:
- ruby-rack: modular Ruby webserver interface

Details:

It was discovered that Rack incorrectly handled carefully crafted requests. A
remote attacker could use this issue to execute a cross-site scripting (XSS)
attack.

Update instructions:

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

Ubuntu 18.04 LTS:
  ruby-rack                       1.6.4-4ubuntu0.1

Ubuntu 16.04 LTS:
  ruby-rack                       1.6.4-3ubuntu0.1

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

References:
  https://usn.ubuntu.com/4089-1
  CVE-2018-16471

Package Information:
  https://launchpad.net/ubuntu/+source/ruby-rack/1.6.4-4ubu...
  https://launchpad.net/ubuntu/+source/ruby-rack/1.6.4-3ubu...
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