---
title: "CVE-2009-4143\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-2009-4143?format=md
keywords: index, follow
---

# CVE-2009-4143

Publication date 21 December 2009

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

PHP before 5.2.12 does not properly handle session data, which has
unspecified impact and attack vectors related to (1) interrupt corruption
of the SESSION superglobal array and (2) the session.save\_path directive.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2009-4143?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| php5 | 9.10 karmic | Fixed 5.2.10.dfsg.1-2ubuntu6.4 |
| 9.04 jaunty | Fixed 5.2.6.dfsg.1-3ubuntu4.5 |
| 8.10 intrepid | Fixed 5.2.6-2ubuntu4.6 |
| 8.04 LTS hardy | Fixed 5.2.4-2ubuntu5.10 |
| 6.06 LTS dapper | Fixed 5.1.2-1ubuntu3.18 |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2009-4143?format=md#patch-details)

## Notes

---

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

safe\_mode or open\_basedir bypass

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| php5 | * Upstream:   <http://svn.php.net/viewvc?view=revision&revision=291681> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-4143)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-4143)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-4143)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2009-4143)

### Related Ubuntu Security Notices (USN)

+ [USN-882-1](https://usn.ubuntu.com/USN-882-1)
+ PHP vulnerabilities
+ 13 January 2010

### Other references

* <http://www.suspekt.org/2009/11/28/shocking-news-in-php-exploitation/>
* <https://www.cve.org/CVERecord?id=CVE-2009-4143>