=========================================================================Ubuntu Security Notice USN-3621-2
April 13, 2018

ruby1.9.1, ruby2.0 regression
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS

Summary:

USN-3621-1 caused a regression in Ruby.

Software Description:
- ruby1.9.1: Object-oriented scripting language
- ruby2.0: Object-oriented scripting language

Details:

USN-3621-1 fixed vulnerabilities in Ruby. The update caused an issue
due to an incomplete patch for CVE-2018-1000074. This update reverts
the problematic patch pending further investigation.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that Ruby incorrectly handled certain inputs. An
 attacker could possibly use this to access sensitive information.
 (CVE-2018-1000073)

 It was discovered that Ruby incorrectly handled certain files. An
 attacker could possibly use this to execute arbitrary code. 
 (CVE-2018-1000074)

 It was discovered that Ruby incorrectly handled certain files. An
 attacker could possibly use this to cause a denial of service. 
 (CVE-2018-1000075)

 It was discovered that Ruby incorrectly handled certain crypto
 signatures. An attacker could possibly use this to execute arbitrary
 code. (CVE-2018-1000076)

 It was discovered that Ruby incorrectly handled certain inputs. An
 attacker could possibly use this to execute arbitrary code. 
 (CVE-2018-1000077, CVE-2018-1000078, CVE-2018-1000079)

Update instructions:

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

Ubuntu 14.04 LTS:
  libruby1.9.1                    1.9.3.484-2ubuntu1.10
  libruby2.0                      2.0.0.484-1ubuntu2.8
  ruby1.9.1                       1.9.3.484-2ubuntu1.10
  ruby1.9.3                       1.9.3.484-2ubuntu1.10
  ruby2.0                         2.0.0.484-1ubuntu2.8

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

References:
  https://ubuntu.com/security/notices/USN-3621-2
  https://ubuntu.com/security/notices/USN-3621-1
  CVE-2018-1000074

Package Information:
  https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.10
  https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.8

Ubuntu 3621-2: Ruby regression

April 13, 2018
USN-3621-1 caused a regression in Ruby.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS:   libruby1.9.1                    1.9.3.484-2ubuntu1.10   libruby2.0                      2.0.0.484-1ubuntu2.8   ruby1.9.1                       1.9.3.484-2ubuntu1.10   ruby1.9.3                       1.9.3.484-2ubuntu1.10   ruby2.0                         2.0.0.484-1ubuntu2.8 In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-3621-2

  https://ubuntu.com/security/notices/USN-3621-1

  CVE-2018-1000074

Severity
April 13, 2018

Package Information

  https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.10   https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.8

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