USN-3621-2: Ruby regression

Releases

• Ubuntu 14.04 ESM

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)

Update instructions

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

Ubuntu 14.04

• 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

• CVE-2018-1000074

Related notices

• USN-3621-1
• USN-3685-1