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Alerts This Week
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Ubuntu 17.10: USN-3626-1 Moderate Ruby Execution Issues and Risk

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Calendar Grey April 16, 2018
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Security alert highlights vulnerabilities in Ruby on Ubuntu. Update your system to protect against possible threats.
Several security issues were fixed in Ruby.

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)

Topics%20covered

Topics Covered

security advisory Ubuntu arbitrary code information disclosure execution risk

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://ubuntu.com/security/notices/USN-3626-1

  CVE-2018-6914, CVE-2018-8778, CVE-2018-8779, CVE-2018-8780

April 16, 2018

Topics%20covered

Topics Covered

security advisory Ubuntu arbitrary code information disclosure execution risk

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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