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out-of-bounds read in coders/viff.c:692:35 #129

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moshekaplan opened this issue Feb 12, 2016 · 5 comments
Closed

out-of-bounds read in coders/viff.c:692:35 #129

moshekaplan opened this issue Feb 12, 2016 · 5 comments

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@moshekaplan
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https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1545183

@saoirse-ronan
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Unfortunately, we cannot reproduce this problem. We have the address sanitizer enabled and ImageMagick exits without complaint:

$ magick id:000097,sig:06,src:000777,op:flip4,pos:520 /dev/null
magick: unexpected end-of-file ' id:000097,sig:06,src:000777,op:flip4,pos:520'

@moshekaplan
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This bug still appears to be present on my system as of git commit 0ff89d1
I am running Ubuntu 14.04 x86.

@mikayla-grace
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Unfortunately, we cannot reproduce this problem. We have the address sanitizer enabled and ImageMagick exits without complaint:

$ magick id:000097,sig:06,src:000777,op:flip4,pos:520 /dev/null
magick: unexpected end-of-file ' id:000097,sig:06,src:000777,op:flip4,pos:520'

We tried this on five different systems (Fedora, CentOS) and all completed with 'not enough memory', 'libasan cannot allocate memory', or 'unexpected end-of-file'. None reported a memory corruption exception.

@dlemstra
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Can you check if the patches from above resolved the issue?

@moshekaplan
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The patches appear to have fixed this bug. Thanks!

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