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Ubuntu Security Notice USN-3515-1

Ubuntu Security Notice USN-3515-1
Posted Jan 4, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3515-1 - It was discovered that Ruby allows FTP command injection. An attacker could use this to cause arbitrary command execution.

tags | advisory, arbitrary, ruby
systems | linux, ubuntu
advisories | CVE-2017-17405
MD5 | f7b58732c56f4b529a4dc406db0c50ed

Ubuntu Security Notice USN-3515-1

Change Mirror Download
==========================================================================
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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