Ubuntu Security Notice 3626-1 - It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this to execute arbitrary code. It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this to access sensitive information. It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this to connect to an unintended socket. Various other issues were also addressed.
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Ubuntu Security Notice USN-3626-1
April 16, 2018
ruby1.9.1, ruby2.0, ruby2.3 vulnerabilities
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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 execute arbitrary code.
(CVE-2018-6914)
It was discovered that Ruby incorrectly handled certain inputs. An
attacker could possibly use this to access sensitive information.
(CVE-2018-8778, CVE-2018-8780)
It was discovered that Ruby incorrectly handled certain inputs. An
attacker could possibly use this to connect to an unintended socket.
(CVE-2018-8779)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.10:
libruby2.3 2.3.3-1ubuntu1.5
ruby2.3 2.3.3-1ubuntu1.5
Ubuntu 16.04 LTS:
libruby2.3 2.3.1-2~16.04.9
ruby2.3 2.3.1-2~16.04.9
Ubuntu 14.04 LTS:
libruby1.9.1 1.9.3.484-2ubuntu1.11
libruby2.0 2.0.0.484-1ubuntu2.9
ruby1.9.1 1.9.3.484-2ubuntu1.11
ruby1.9.3 1.9.3.484-2ubuntu1.11
ruby2.0 2.0.0.484-1ubuntu2.9
In general, a standard system update will make all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3626-1
CVE-2018-6914, CVE-2018-8778, CVE-2018-8779, CVE-2018-8780
Package Information:
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.3-1ubuntu1.5
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.1-2~16.04.9
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.11
https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.9