[USN-4175-1] Nokogiri vulnerability

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[USN-4175-1] Nokogiri vulnerability

Eduardo Barretto
==========================================================================
Ubuntu Security Notice USN-4175-1
November 05, 2019

ruby-nokogiri vulnerability
==========================================================================

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

- Ubuntu 19.10
- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Nokogiri could be made to execute programs if it received
specially crafted input.

Software Description:
- ruby-nokogiri: HTML, XML, SAX, and Reader parser for Ruby

Details:

It was discovered that Nokogiri incorrectly handled inputs. A remote attacker
could possibly use this issue to execute arbitrary OS commands.

Update instructions:

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

Ubuntu 19.10:
  ruby-nokogiri                   1.10.3+dfsg1-2ubuntu0.1

Ubuntu 19.04:
  ruby-nokogiri                   1.10.0+dfsg1-2ubuntu0.1

Ubuntu 18.04 LTS:
  ruby-nokogiri                   1.8.2-1ubuntu0.1

Ubuntu 16.04 LTS:
  ruby-nokogiri                   1.6.7.2-3ubuntu0.1

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

References:
  https://usn.ubuntu.com/4175-1
  CVE-2019-5477

Package Information:
  https://launchpad.net/ubuntu/+source/ruby-nokogiri/1.10.3+dfsg1-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/ruby-nokogiri/1.10.0+dfsg1-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/ruby-nokogiri/1.8.2-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/ruby-nokogiri/1.6.7.2-3ubuntu0.1

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