USN-3528-1: Ruby vulnerabilities

Publication date

10 January 2018

Overview

Several security issues were fixed in Ruby.


Packages

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

Details

It was discovered that Ruby incorrectly handled certain terminal emulator
escape sequences. An attacker could use this to execute arbitrary code via
a crafted user name. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10.
(CVE-2017-10784)

It was discovered that Ruby incorrectly handled certain strings.
An attacker could use this to cause a denial of service. This issue
only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-14033)

It was discovered that Ruby incorrectly handled some generating JSON.
An attacker could use this to possible expose sensitive information.
This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10.
(CVE-2017-14064)

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to execute arbitrary code.
(

It was discovered that Ruby incorrectly handled certain terminal emulator
escape sequences. An attacker could use this to execute arbitrary code via
a crafted user name. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10.
(CVE-2017-10784)

It was discovered that Ruby incorrectly handled certain strings.
An attacker could use this to cause a denial of service. This issue
only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-14033)

It was discovered that Ruby incorrectly handled some generating JSON.
An attacker could use this to possible expose sensitive information.
This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10.
(CVE-2017-14064)

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to execute arbitrary code.
(CVE-2017-17790)


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
17.10 artful libruby2.3 –  2.3.3-1ubuntu1.2
ruby2.3 –  2.3.3-1ubuntu1.2
16.04 xenial libruby2.3 –  2.3.1-2~16.04.5
ruby2.3 –  2.3.1-2~16.04.5
14.04 trusty libruby1.9.1 –  1.9.3.484-2ubuntu1.7
ruby1.9.1 –  1.9.3.484-2ubuntu1.7
ruby1.9.3 –  1.9.3.484-2ubuntu1.7

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