News Feed
Sections




News Archive
Looking for more information on how to do PHP the right way? Check out PHP: The Right Way

Secunia.com:
PHP "gdPngReadData()" Truncated PNG Data Denial of Service
May 22, 2007 @ 11:09:00

Secunia has posted this new advisory today about an issue with the GD graphics library functionality in PHP that could be used to cause a Denial of Service via a truncated PNG image.

The vulnerability is caused due to the incorrect use of libpng within the function "gdPngReadData()" in ext/gd/libgd/gd_png.c of the GD extension when processing truncated data. This can be exploited to cause an infinite loop by e.g. tricking an application to process a specially crafted file. (reported by Xavier Roche)

This issue has been confirmed in PHP versions 4.4.7 and 5.2.2 but may affect others. The issue has already been corrected, however, and can be fetched from the PHP CVS system to protect your system.

0 comments voice your opinion now!
gd image png truncate denialofservice secunia gdpngreaddata gd image png truncate denialofservice secunia gdpngreaddata


blog comments powered by Disqus

Similar Posts

DevShed: An Image is Worth a Thousand Words in PHP

Anonwhat: ASCII Art Generator

IBM developerWorks: Generate Flash movies on the fly with PHP

JSLabs Blog: How to write an image gallery script in PHP

Secunia.com: PHPChain Two Cross-Site Scripting Vulnerabilities


Community Events





Don't see your event here?
Let us know!


community application release threedevsandamaybe wordpress configure list podcast introduction unittest developer laravel language interview homestead install api library code series

All content copyright, 2014 PHPDeveloper.org :: info@phpdeveloper.org - Powered by the Solar PHP Framework