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

16 April 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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2018-6914
• CVE-2018-8778
• CVE-2018-8779
• CVE-2018-8780