php imagecreatefrom* functions of the png-vulnerability warning-the black bar safety net

0x00 introduction This article mainly analyzes the php using the GD library imagecreatefrompng function to rebuild the png image may lead to local file inclusion vulnerability. When the system is the existence of the file contains the points, can contain a picture file; in addition the system the...

gd / php-gd ImageCreateFromPng infinite loop caused by truncated PNG

The gdPngReadData function in libgd 2.0.34 allows user-assisted attackers to cause a denial of service CPU consumption via a crafted PNG image with truncated data, which causes an infinite loop in the pngreadinfo function in libpng...