ubuntu-security-announce Digest, Vol 96, Issue 16

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Today's Topics:

1. [USN-1582-1] RubyGems vulnerabilities (Tyler Hicks)
2. [USN-1583-1] Ruby vulnerabilities (Tyler Hicks)


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Message: 1
Date: Tue, 25 Sep 2012 19:23:13 -0700
From: Tyler Hicks <tyhicks@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1582-1] RubyGems vulnerabilities
Message-ID: <20120926022312.GC4742@boyd>
Content-Type: text/plain; charset="us-ascii"

==========================================================================
Ubuntu Security Notice USN-1582-1
September 26, 2012

rubygems vulnerabilities
==========================================================================

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

- Ubuntu 12.04 LTS

Summary:

RubyGems could be made to download and install malicious gem files.

Software Description:
- rubygems: package management framework for Ruby libraries/applications

Details:

John Firebaugh discovered that the RubyGems remote gem fetcher did not properly
verify SSL certificates. A remote attacker could exploit this to perform a man
in the middle attack to alter gem files being downloaded for installation.
(CVE-2012-2126)

John Firebaugh discovered that the RubyGems remote gem fetcher allowed
redirection from HTTPS to HTTP. A remote attacker could exploit this to perform
a man in the middle attack to alter gem files being downloaded for
installation. (CVE-2012-2125)

Update instructions:

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

Ubuntu 12.04 LTS:
rubygems 1.8.15-1ubuntu0.1

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

References:
http://www.ubuntu.com/usn/usn-1582-1
CVE-2012-2125, CVE-2012-2126

Package Information:
https://launchpad.net/ubuntu/+source/rubygems/1.8.15-1ubuntu0.1

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Message: 2
Date: Tue, 25 Sep 2012 19:33:16 -0700
From: Tyler Hicks <tyhicks@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1583-1] Ruby vulnerabilities
Message-ID: <20120926023316.GD4742@boyd>
Content-Type: text/plain; charset="us-ascii"

==========================================================================
Ubuntu Security Notice USN-1583-1
September 26, 2012

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

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

- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in ruby1.9.1

Software Description:
- ruby1.9.1: Interpreter of object-oriented scripting language Ruby

Details:

It was discovered that Ruby incorrectly allowed untainted strings to be
modified in protective safe levels. An attacker could use this flaw to bypass
intended access restrictions. (CVE-2011-1005)

John Firebaugh discovered that the RubyGems remote gem fetcher did not properly
verify SSL certificates. A remote attacker could exploit this to perform a man
in the middle attack to alter gem files being downloaded for installation.
(CVE-2012-2126)

John Firebaugh discovered that the RubyGems remote gem fetcher allowed
redirection from HTTPS to HTTP. A remote attacker could exploit this to perform
a man in the middle attack to alter gem files being downloaded for
installation. (CVE-2012-2125)

Update instructions:

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

Ubuntu 12.04 LTS:
libruby1.9.1 1.9.3.0-1ubuntu2.2

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

References:
http://www.ubuntu.com/usn/usn-1583-1
CVE-2011-1005, CVE-2012-2125, CVE-2012-2126

Package Information:
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.0-1ubuntu2.2

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End of ubuntu-security-announce Digest, Vol 96, Issue 16
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