==========================================================================
Ubuntu Security Notice USN-3621-1
April 05, 2018
ruby1.9.1, ruby2.0, ruby2.3 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 17.10
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Ruby.
Software Description:
– ruby2.3: Object-oriented scripting language
– ruby1.9.1: Object-oriented scripting language
– ruby2.0: Object-oriented scripting language
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 17.10:
libruby2.3 2.3.3-1ubuntu1.4
ruby2.3 2.3.3-1ubuntu1.4
Ubuntu 16.04 LTS:
libruby2.3 2.3.1-2~16.04.7
ruby2.3 2.3.1-2~16.04.7
Ubuntu 14.04 LTS:
libruby1.9.1 1.9.3.484-2ubuntu1.8
libruby2.0 2.0.0.484-1ubuntu2.6
ruby1.9.1 1.9.3.484-2ubuntu1.8
ruby1.9.3 1.9.3.484-2ubuntu1.8
ruby2.0 2.0.0.484-1ubuntu2.6
In general, a standard system update will make all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3621-1
CVE-2018-1000073, CVE-2018-1000074, CVE-2018-1000075, CVE-2018-
1000076,
CVE-2018-1000077, CVE-2018-1000078, CVE-2018-1000079
Package Information:
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.3-1ubuntu1.4
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.1-2~16.04.7
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.8
https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.6—–BEGIN PGP SIGNATURE—–
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