---
title: "CVE-2011-0449\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2011-0449?format=md
keywords: index, follow
---

# CVE-2011-0449

Publication date 21 February 2011

Last updated 24 July 2024

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

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## Description

actionpack/lib/action\_view/template/resolver.rb in Ruby on Rails 3.0.x
before 3.0.4, when a case-insensitive filesystem is used, does not properly
implement filters associated with the list of available templates, which
allows remote attackers to bypass intended access restrictions via an
action name that uses an unintended case for alphabetic characters.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| rails | 10.10 maverick | Not affected |
| 10.04 LTS lucid | Not affected |
| 9.10 karmic | Not affected |
| 8.04 LTS hardy | Not affected |
| 6.06 LTS dapper | Not affected |

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* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0449)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-0449)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-0449)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-0449)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2011-0449>