Ivan Fratric has reported a vulnerability in PHP, which potentially can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an integer overflow within the "readwbmp()" function in ext/gd/libgd/wbmp.c. This can be exploited to e.g. cause a DoS by tricking a PHP script into loading a specially crafted wbmp image.
The vulnerability is reported in version 5.2.1. Other versions may also be affected.
Solution: Update to version 5.2.2 or 4.4.7.
Provided and/or discovered by: Ivan Fratric
Original Advisory: PHP:
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