--- title: "CVE-2009-3558\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-2009-3558?format=md keywords: index, follow --- # CVE-2009-3558 Publication date 23 November 2009 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The posix\_mkfifo function in ext/posix/posix.c in PHP before 5.2.12 and 5.3.x before 5.3.1 allows context-dependent attackers to bypass open\_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | php5 | 9.10 karmic | Fixed 5.2.10.dfsg.1-2ubuntu6.3 | | 9.04 jaunty | Fixed 5.2.6.dfsg.1-3ubuntu4.4 | | 8.10 intrepid | Fixed 5.2.6-2ubuntu4.5 | | 8.04 LTS hardy | Fixed 5.2.4-2ubuntu5.9 | | 6.06 LTS dapper | Fixed 5.1.2-1ubuntu3.17 | --- * [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-2009-3558?format=md#patch-details) ### 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: | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3558) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-3558) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-3558) * [Debian](https://security-tracker.debian.org/tracker/CVE-2009-3558) ### Related Ubuntu Security Notices (USN) + [USN-862-1](https://usn.ubuntu.com/USN-862-1) + PHP vulnerabilities + 26 November 2009 ### Other references * *