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USN-3621-2: Ruby regression

13 April 2018

USN-3621-1 caused a regression in Ruby.

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Releases

Packages

  • 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)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 14.04

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

References

Related notices

  • USN-3621-1: ri1.9.1, libruby2.3, ruby2.0-dev, ruby2.0-doc, ruby2.0-tcltk, libruby2.0, ruby1.9.1-full, ruby2.3, ruby1.9.1-dev, ruby2.3-dev, ruby1.9.1, ruby1.9.1-examples, ruby2.3-doc, ruby1.9.3, ruby2.0, libruby1.9.1, ruby2.3-tcltk, libtcltk-ruby1.9.1
  • USN-3685-1: ri1.9.1, libruby2.3, ruby2.0-dev, ruby2.0-doc, ruby2.0-tcltk, libruby2.0, ruby1.9.1-full, ruby2.3, ruby1.9.1-dev, ruby2.3-dev, ruby1.9.1, ruby1.9.1-examples, ruby2.3-doc, ruby1.9.3, ruby2.0, libruby1.9.1, ruby2.3-tcltk, libtcltk-ruby1.9.1

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