ESB-2017.2520 - [Ubuntu] ruby: Multiple vulnerabilities 2017-10-06

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2520
                           Ruby vulnerabilities
                              6 October 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           ruby
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
                   Overwrite Arbitrary Files       -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-14064 CVE-2017-14033 CVE-2017-10784
                   CVE-2017-10748 CVE-2017-0901 CVE-2017-0900
                   CVE-2017-0899 CVE-2017-0898 

Reference:         ASB-2017.0137
                   ESB-2017.2347
                   ESB-2017.2224
                   ESB-2017.2346.2
                   ESB-2017.2348

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3439-1

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==========================================================================
Ubuntu Security Notice USN-3439-1
October 05, 2017

ruby1.9.1 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Ruby.

Software Description:
- - ruby1.9.1: Object-oriented scripting language

Details:

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to cause a buffer overrun.
(CVE-2017-0898)

Yusuke Endoh discovered that Ruby incorrectly handled certain files.
An attacker could use this to execute terminal escape sequences.
(CVE-2017-0899)

Yusuke Endoh discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to cause a denial of service.
(CVE-2017-0900)

It was discovered that Ruby incorrectly handled certain files.
An attacker could use this to overwrite any file on the filesystem.
(CVE-2017-0901)

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to execute arbitrary code.
(CVE-2017-10784)

It was discovered that Ruby incorrectly handled certain inputs.
An attacker could use this to cause a denial of service.
(CVE-2017-14033)

It was discovered that Ruby incorrectly handled certain files.
An attacker could use this to expose sensitive information.
(CVE-2017-14064)

Update instructions:

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

Ubuntu 14.04 LTS:
  libruby1.9.1  		1.9.3.484-2ubuntu1.5
  ruby1.9.1			1.9.3.484-2ubuntu1.5
  ruby1.9.3			1.9.3.484-2ubuntu1.5

In general, a standard system update will make all the necessary
changes.

References:
  https://www.ubuntu.com/usn/usn-3439-1
  CVE-2017-0898, CVE-2017-0899, CVE-2017-0900, CVE-2017-0901,
  CVE-2017-10748, CVE-2017-14033, CVE-2017-14064

Package Information:
  https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.5

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