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Ubuntu Security Notice USN-7057-2
October 08, 2024

ruby-webrick vulnerability
==========================================================================

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

- Ubuntu 22.04 LTS

Summary:

WEBrick could allow a HTTP request smuggling attack.

Software Description:
- ruby-webrick: HTTP server toolkit in Ruby

Details:

USN-7057-1 fixed a vulnerability in WEBrick. This update provides the
corresponding updates for Ubuntu 22.04 LTS.

Original advisory details:

 It was discovered that WEBrick incorrectly handled having both a Content-
 Length header and a Transfer-Encoding header. A remote attacker could
 possibly use this issue to perform a HTTP request smuggling attack.

Update instructions:

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

Ubuntu 22.04 LTS
  ruby-webrick                    1.7.0-3ubuntu0.1

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

References:
  https://ubuntu.com/security/notices/USN-7057-2
  https://ubuntu.com/security/notices/USN-7057-1
  CVE-2024-47220

Package Information:
  https://launchpad.net/ubuntu/+source/ruby-webrick/1.7.0-3ubuntu0.1