1. Ubuntu Security Notices
  2. USN-1614-1

USN-1614-1: Ruby vulnerabilities

Publication date

23 October 2012

Overview

Several security issues were fixed in Ruby.

Releases

Packages

  • 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. USN-1602-1 fixed these
vulnerabilities in other Ubuntu releases. This update provides the
corresponding updates for Ubuntu 12.10. (CVE-2012-4464, CVE-2012-4466)

Peter Bex discovered that Ruby incorrectly handled file path strings when
opening files. An attacker could use this flaw to open or create unexpected
files. (CVE-2012-4522)

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. USN-1602-1 fixed these
vulnerabilities in other Ubuntu releases. This update provides the
corresponding updates for Ubuntu 12.10. (CVE-2012-4464, CVE-2012-4466)

Peter Bex discovered that Ruby incorrectly handled file path strings when
opening files. An attacker could use this flaw to open or create unexpected
files. (CVE-2012-4522)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
12.10 quantal libruby1.9.1 –  1.9.3.194-1ubuntu1.2
12.04 precise libruby1.9.1 –  1.9.3.0-1ubuntu2.4

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References

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