==========================================================================
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://usn.ubuntu.com/usn/usn-3621-2
https://usn.ubuntu.com/usn/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—–BEGIN PGP SIGNATURE—–
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