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Sicherheit: Mehrere Probleme in Ruby
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Ruby
ID: USN-3365-1
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 17.04
Datum: Di, 25. Juli 2017, 23:17
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-9096
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-5147
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7551
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2337
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7798
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2339
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1855

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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <21b7bdb8-6ae4-03da-042b-ff793be26505@canonical.com>
Subject: [USN-3365-1] Ruby vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-3365-1
July 25, 2017

ruby1.9.1, ruby2.0, ruby2.3 vulnerabilities
==========================================================================

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

- Ubuntu 17.04
- 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 DL::dlopen incorrectly handled opening
libraries. An attacker could possibly use this issue to open libraries with
tainted names. This issue only applied to Ubuntu 14.04 LTS. (CVE-2009-5147)

Tony Arcieri, Jeffrey Walton, and Steffan Ullrich discovered that the Ruby
OpenSSL extension incorrectly handled hostname wildcard matching. This
issue only applied to Ubuntu 14.04 LTS. (CVE-2015-1855)

Christian Hofstaedtler discovered that Ruby Fiddle::Handle incorrectly
handled certain crafted strings. An attacker could use this issue to cause
a denial of service, or possibly execute arbitrary code. This issue only
applied to Ubuntu 14.04 LTS. (CVE-2015-7551)

It was discovered that Ruby Net::SMTP incorrectly handled CRLF sequences. A
remote attacker could possibly use this issue to inject SMTP commands.
(CVE-2015-9096)

Marcin Noga discovered that Ruby incorrectly handled certain arguments in
a TclTkIp class method. An attacker could possibly use this issue to
execute arbitrary code. This issue only affected Ubuntu 14.04 LTS.
(CVE-2016-2337)

It was discovered that Ruby Fiddle::Function.new incorrectly handled
certain arguments. An attacker could possibly use this issue to execute
arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2016-2339)

It was discovered that Ruby incorrectly handled the initialization vector
(IV) in GCM mode. An attacker could possibly use this issue to bypass
encryption. (CVE-2016-7798)

Update instructions:

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

Ubuntu 17.04:
libruby2.3 2.3.3-1ubuntu0.1
ruby2.3 2.3.3-1ubuntu0.1

Ubuntu 16.04 LTS:
libruby2.3 2.3.1-2~16.04.2
ruby2.3 2.3.1-2~16.04.2

Ubuntu 14.04 LTS:
libruby1.9.1 1.9.3.484-2ubuntu1.3
libruby2.0 2.0.0.484-1ubuntu2.4
ruby1.9.1 1.9.3.484-2ubuntu1.3
ruby2.0 2.0.0.484-1ubuntu2.4

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

References:
https://www.ubuntu.com/usn/usn-3365-1
CVE-2009-5147, CVE-2015-1855, CVE-2015-7551, CVE-2015-9096,
CVE-2016-2337, CVE-2016-2339, CVE-2016-7798

Package Information:
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.3-1ubuntu0.1
https://launchpad.net/ubuntu/+source/ruby2.3/2.3.1-2~16.04.2
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.484-2ubuntu1.3
https://launchpad.net/ubuntu/+source/ruby2.0/2.0.0.484-1ubuntu2.4



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