USN-3528-1: Ruby vulnerabilities

10 January 2018

Several security issues were fixed in Ruby.

Releases

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.
(CVE-2017-17790)

Update instructions

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

Ubuntu 17.10
Ubuntu 16.04
Ubuntu 14.04

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

Related notices

  • USN-3685-1: ruby1.9.1-full, ruby1.9.1, libruby2.0, ruby1.9.1-examples, ruby2.0-dev, ri1.9.1, ruby2.3, ruby2.3-dev, ruby2.3-doc, libtcltk-ruby1.9.1, libruby2.3, libruby1.9.1, ruby2.3-tcltk, ruby2.0-doc, ruby2.0-tcltk, ruby2.0, ruby1.9.3, ruby1.9.1-dev
  • USN-3439-1: ruby1.9.1-full, ruby1.9.1, ruby1.9.1-examples, ri1.9.1, libtcltk-ruby1.9.1, libruby1.9.1, ruby1.9.3, ruby1.9.1-dev