==========================================================================
Ubuntu Security Notice USN-3515-1
January 04, 2018
ruby1.9.1, ruby2.0, ruby2.3 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 17.10
– Ubuntu 17.04
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
Summary:
Ruby could be made to execute arbitrary commands if opened a specially
crafted file.
Software Description:
– ruby2.3: Interpreter of object-oriented scripting language Ruby
– ruby1.9.1: Object-oriented scripting language
– ruby2.0: Object-oriented scripting language
Details:
It was discovered that Ruby allows FTP command injection.
An attacker could use this to cause arbitrary command execution.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.10:
libruby2.3 2.3.3-1ubuntu1.1
ruby2.3 2.3.3-1ubuntu1.1
Ubuntu 17.04:
libruby2.3 2.3.3-1ubuntu0.3
ruby2.3 2.3.3-1ubuntu0.3
Ubuntu 16.04 LTS:
libruby2.3 2.3.1-2~16.04.4
ruby2.3 2.3.1-2~16.04.4
Ubuntu 14.04 LTS:
libruby1.9.1 1.9.3.484-2ubuntu1.6
libruby2.0 2.0.0.484-1ubuntu2.5
ruby1.9.1 1.9.3.484-2ubuntu1.6
ruby1.9.3 1.9.3.484-2ubuntu1.6
ruby2.0 2.0.0.484-1ubuntu2.5
In general, a standard system update will make all the necessary
changes.
References:
https://www.ubuntu.com/usn/usn-3515-1
CVE-2017-17405
Package Information:
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.3-1ubuntu1.1
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.3-1ubuntu0.3
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.1-2~16.04.4
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.6
https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.5
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