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Ubuntu Security Notice USN-3626-1

Ubuntu Security Notice USN-3626-1
Posted Apr 16, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3626-1 - It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this to execute arbitrary code. It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this to access sensitive information. It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this to connect to an unintended socket. Various other issues were also addressed.

tags | advisory, arbitrary, ruby
systems | linux, ubuntu
advisories | CVE-2018-6914, CVE-2018-8778, CVE-2018-8779, CVE-2018-8780
SHA-256 | ef0daac817c814813e6e0872b534f7551f133d2e4eb2b05ea2a0500948d6d3a1

Ubuntu Security Notice USN-3626-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3626-1
April 16, 2018

ruby1.9.1, ruby2.0, ruby2.3 vulnerabilities
==========================================================================

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

- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Ruby.

Software Description:
- ruby2.3: Object-oriented scripting language
- ruby1.9.1: Object-oriented scripting language
- ruby2.0: Object-oriented scripting language

Details:

It was discovered that Ruby incorrectly handled certain inputs. An
attacker could possibly use this to execute arbitrary code.
(CVE-2018-6914)

It was discovered that Ruby incorrectly handled certain inputs. An
attacker could possibly use this to access sensitive information.
(CVE-2018-8778, CVE-2018-8780)

It was discovered that Ruby incorrectly handled certain inputs. An
attacker could possibly use this to connect to an unintended socket.
(CVE-2018-8779)

Update instructions:

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

Ubuntu 17.10:
libruby2.3 2.3.3-1ubuntu1.5
ruby2.3 2.3.3-1ubuntu1.5

Ubuntu 16.04 LTS:
libruby2.3 2.3.1-2~16.04.9
ruby2.3 2.3.1-2~16.04.9

Ubuntu 14.04 LTS:
libruby1.9.1 1.9.3.484-2ubuntu1.11
libruby2.0 2.0.0.484-1ubuntu2.9
ruby1.9.1 1.9.3.484-2ubuntu1.11
ruby1.9.3 1.9.3.484-2ubuntu1.11
ruby2.0 2.0.0.484-1ubuntu2.9

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

References:
https://usn.ubuntu.com/usn/usn-3626-1
CVE-2018-6914, CVE-2018-8778, CVE-2018-8779, CVE-2018-8780

Package Information:
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.3-1ubuntu1.5
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.1-2~16.04.9
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.11
https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.9
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