---
title: "CVE-2012-1171\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-2012-1171?format=md
keywords: index, follow
---

# CVE-2012-1171

Publication date 15 February 2014

Last updated 24 July 2024

---

Ubuntu priority

**Low**

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

Toggle side navigation

## Description

The libxml RSHUTDOWN function in PHP 5.x allows remote attackers to bypass
the open\_basedir protection mechanism and read arbitrary files via vectors
involving a stream\_close method call during use of a custom stream wrapper.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2012-1171?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| php5 | 11.10 oneiric | Ignored |
| 11.04 natty | Ignored |
| 10.04 LTS lucid | Ignored |
| 8.04 LTS hardy | Ignored |

---

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

## Notes

---

### [jdstrand](https://launchpad.net/~jdstrand)

safe\_mode - open\_basedir bypass, ignoring

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1171)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-1171)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-1171)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2012-1171)

### Other references

* <https://bugs.php.net/bug.php?id=61367>
* <https://www.cve.org/CVERecord?id=CVE-2012-1171>