1. Ubuntu Security Notices
  2. USN-3808-1

USN-3808-1: Ruby vulnerabilities

Publication date

5 November 2018

Overview

Several security issues were fixed in Ruby.

Releases

Packages

  • ruby1.9.1 - Object-oriented scripting language
  • ruby2.0 - Object-oriented scripting language
  • ruby2.3 - Object-oriented scripting language
  • ruby2.5 - Interpreter of object-oriented scripting language Ruby

Details

It was discovered that Ruby incorrectly handled certain X.509
certificates. An attacker could possibly use this issue to
bypass the certificate check. (CVE-2018-16395)

It was discovered that Ruby incorrectly handled certain
inputs. An attacker could possibly use this issue to execute
arbitrary code. (CVE-2018-16396)

It was discovered that Ruby incorrectly handled certain X.509
certificates. An attacker could possibly use this issue to
bypass the certificate check. (CVE-2018-16395)

It was discovered that Ruby incorrectly handled certain
inputs. An attacker could possibly use this issue to execute
arbitrary code. (CVE-2018-16396)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.10 cosmic libruby2.5 –  2.5.1-5ubuntu4.1
ruby2.5 –  2.5.1-5ubuntu4.1
18.04 bionic libruby2.5 –  2.5.1-1ubuntu1.1
ruby2.5 –  2.5.1-1ubuntu1.1
16.04 xenial libruby2.3 –  2.3.1-2~16.04.11
ruby2.3 –  2.3.1-2~16.04.11
14.04 trusty libruby1.9.1 –  1.9.3.484-2ubuntu1.13
libruby2.0 –  2.0.0.484-1ubuntu2.11
ruby1.9.1 –  1.9.3.484-2ubuntu1.13
ruby1.9.3 –  1.9.3.484-2ubuntu1.13
ruby2.0 –  2.0.0.484-1ubuntu2.11

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References

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