By Jake Edge February 8, 2012 A recent proposal for Debian to stop shipping PHP with the security patches has been controversial. There are a number of reasons behind the proposal—manpower, sticking to the mainline, performance, and more—but others responding in the thread consider the security mitigations that Suhosin provides to be very important for the web application language given its less than stellar security track record. What most would like to see is that those protections make their way out of the Suhosin patches and into the PHP mainline, but that does not seem to be in the offing. In the meantime, users may find that the PHP protections they have depended on will disappear from Debian.

Debian PHP maintainer Ondřej Surý a message to several lists noting that the Suhosin patches have been disabled in the unstable repository and tries ' to summarize the reasons why I have decided to disable suhosin patch' in the message. Dama Su Internet Windows 7 more. Over time, he has changed his mind about Suhosin, so he is documenting the reasons and looking for other opinions. The Debian PHP team is evidently understaffed, and the work to add in the Suhosin patches (and module) eats up some of that time. Surý is not convinced that the extra time is necessarily well-spent because PHP has ' improved a lot'. By shipping only a Suhosin-enabled PHP, Debian is diverging not only from the mainline, but also from what other Linux distributions do. That means that users coming from other distributions (like Fedora which doesn't ship Suhosin or openSUSE where it is optional) may run into problems they don't expect.

In addition, he said, bugs reported upstream from the Debian version are often met with a request to reproduce it in vanilla PHP. There are also performance and memory usage impacts from Suhosin that some find excessive. Solid Edge V20 For Windows 8 64 Bit here. Suhosin grew out of the that was in 2004. The basic idea is to add protections against bugs in the PHP core (aka Zend Engine) by making proactive changes for things like buffer overflows or format string vulnerabilities. It also tries to protect against badly written PHP applications, of which there are seemingly countless examples. Suhosin has two parts, a patch to the PHP core along with a PHP extension that implements additional hardening features.

How To Harden PHP5 With Suhosin (Debian Etch/Ubuntu). In this tutorial my PHP version is 5.2.0-8+etch1, so I download the patch for PHP 5.2.0. Search for jobs related to Debian remove suhosin patch or hire on the world's largest freelancing marketplace with 13m+ jobs. It's free to sign up and bid on jobs.

The core patches are what try to protect against buffer overflows by adding canary values to internal data structures so that the overflows can be detected. In addition, the pointers to destructors (i. Baby Blue Movies City Tv. e. Functions that are called when an element is freed) for internal hash tables and linked lists are protected as they can be a vector for code execution if a buffer overflow overwrites them. Format string vulnerability protection and a more robust implementation of realpath() round out the changes to the core. The extension provides a whole host of other kinds of protections, largely against dodgy PHP programming practices. For example it protects against either remote or local code inclusion, which is one of the worst problems that has plagued PHP applications.

It can disable the eval() call, prevent infinite recursion by putting a limit on call depth, stop HTTP response splitting attacks, filter uploaded files by a variety of conditions, and on and on. While it obviously can't prevent all badly written PHP from running amok, it's clear that the Suhosin developers have looked at a lot of common problems and tried to address them. While most of the are, they are all going to impact performance in one way or another. That's a tradeoff that many seem to be willing to make, especially in shared hosting facilities where a vulnerability in a particular customer-installed application (or the version of PHP itself) might have serious repercussions for other customers.

As the project's ' page notes, it comes down to a question of trust. If you are using PHP only for your own server and only for your own scripts and applications, then you can judge for yourself, if you trust your code enough. In that case you most probably don’t need the Suhosin extension.