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Ubuntu Security Notice USN-1602-1

Ubuntu Security Notice USN-1602-1
Posted Oct 11, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1602-1 - Tyler Hicks and Shugo Maeda 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.

tags | advisory, ruby
systems | linux, ubuntu
advisories | CVE-2012-4464, CVE-2012-4466
MD5 | 7e42c8b6f45408d767c89af1cb70d102

Ubuntu Security Notice USN-1602-1

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==========================================================================Ubuntu Security Notice USN-1602-1
October 10, 2012

ruby1.9.1 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS

Summary:

Ruby could allow excessive access in untrusted programs.

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

Details:

Tyler Hicks and Shugo Maeda 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-2012-4464, CVE-2012-4466)

Update instructions:

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

Ubuntu 12.04 LTS:
libruby1.9.1 1.9.3.0-1ubuntu2.3

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

References:
http://www.ubuntu.com/usn/usn-1602-1
CVE-2012-4464, CVE-2012-4466

Package Information:
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.0-1ubuntu2.3
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