Ubuntu Security Notices
USN-3621-2

USN-3621-2: Ruby regression

Publication date

13 April 2018

Overview

USN-3621-1 caused a regression in Ruby.

Releases

14.04 LTS

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...

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

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
14.04 trusty	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

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References

CVE-2018-1000074

CVE-2018-1000074