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Runtime panic when trying to resize 4:1:1 YCbCr image #37

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carl-mastrangelo opened this issue Oct 5, 2015 · 2 comments
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Runtime panic when trying to resize 4:1:1 YCbCr image #37

carl-mastrangelo opened this issue Oct 5, 2015 · 2 comments
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@carl-mastrangelo
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I got a runtime panic when trying to resize a jpeg image that has 4x1 Chroma Subsampling, aka. image.YCbCrSubsampleRatio411. In ycc.go, it seems the default is 444 if no other sample is matched, which causes an index out of range panic.

I have a reproducible test program and image, if desired.
@carl-mastrangelo carl-mastrangelo mentioned this issue Oct 5, 2015
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@nfnt nfnt added the bug label Oct 14, 2015
@carl-mastrangelo
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Friendly ping. This represents a DoS vector when the picture comes from an untrusted source. In my case it is creating a thumbnail from a user uploaded picture.

@nfnt nfnt mentioned this issue Jul 1, 2016
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@nfnt nfnt mentioned this issue Aug 9, 2016
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@unixpickle unixpickle mentioned this issue Sep 7, 2016
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nfnt commented Feb 21, 2018

Fixed by #57.

@nfnt nfnt closed this as completed Feb 21, 2018
@nfnt nfnt mentioned this issue Feb 21, 2018
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