USN-4089-1: Rack vulnerability

Publication date

7 August 2019

Overview

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


Packages

  • 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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic ruby-rack –  1.6.4-4ubuntu0.1
16.04 xenial ruby-rack –  1.6.4-3ubuntu0.1

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