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Version: ImageMagick 7.0.6-1 Q16 x86_64
$magick identify $FILE
Here is the critical code
for (i=0; i < (ssize_t) length; i++) //line 5247 chunk[i]=(unsigned char) ReadBlobByte(image);
length can be controlled as follow:
length=ReadBlobMSBLong(image); //5217
length is 32bit, so the loop can be very large, and cause a lot of failed I/O
testcase: https://github.com/jgj212/poc/blob/master/cpu-mng
Credit: ADLab of Venustech
The text was updated successfully, but these errors were encountered:
Thanks for the problem report. We can reproduce it and will have a patch to fix it in GIT master branch @ https://github.com/ImageMagick/ImageMagick later today. The patch will be available in the beta releases of ImageMagick @ http://www.imagemagick.org/download/beta/ by sometime tomorrow.
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https://github.com/ImageMagick/ImageMagick/issues/526
5d43fdf
#527
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Version: ImageMagick 7.0.6-1 Q16 x86_64
$magick identify $FILE
Here is the critical code
length can be controlled as follow:
length is 32bit, so the loop can be very large, and cause a lot of failed I/O
testcase:
https://github.com/jgj212/poc/blob/master/cpu-mng
Credit: ADLab of Venustech
The text was updated successfully, but these errors were encountered: