Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 542
Alerts This Week
Warning Icon 1 542

Ubuntu 12.10 USN-1614-1 Moderate: Issues with Ruby Access and Security

ubuntu
Calendar Grey October 23, 2012
Scroller Ubuntu
Multiple security flaws in Ruby have been tackled in Ubuntu Security Notice USN-1614-2; verify your system's protection immediately.
Several security issues were fixed in Ruby.

Summary

Several security issues were fixed in Ruby.

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. 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)

Topics%20covered

Topics Covered

security advisory risk management code execution file handling ubuntu ruby access restriction

Update Instructions

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

Ubuntu 12.10:
  libruby1.9.1                    1.9.3.194-1ubuntu1.2

Ubuntu 12.04 LTS:
  libruby1.9.1                    1.9.3.0-1ubuntu2.4

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

References

https://ubuntu.com/security/notices/USN-1614-1

CVE-2012-4464, CVE-2012-4466, CVE-2012-4522

October 23, 2012

Topics%20covered

Topics Covered

security advisory risk management code execution file handling ubuntu ruby access restriction

Package Information

https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.194-1ubuntu1.2
https://launchpad.net/ubuntu/+source/ruby1.9.1/1.9.3.0-1ubuntu2.4

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.