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uses the PerceptibleReciprocal() to prevent the divide-by-zero from o… #3193

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merged 1 commit into from Feb 3, 2021
Merged

uses the PerceptibleReciprocal() to prevent the divide-by-zero from o… #3193

merged 1 commit into from Feb 3, 2021

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hifoolno
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@hifoolno hifoolno commented Feb 3, 2021

…ccurring

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@urban-warrior urban-warrior merged commit 9751bd6 into ImageMagick:main Feb 3, 2021
@carnil
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carnil commented Feb 17, 2021

CVE-2021-20243 appears to have been assigned for this issue.

@tcullum-rh
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Just out of curiosity, how would this occur based off of an input file to ImageMagick? Having a cursory look at https://github.com/ImageMagick/ImageMagick/blob/c9151b59167d6486d65c474aa5d33523c8b292af/MagickCore/resize.c, it seems like the blur is predetermined based on the filter, and not 0.

@armorcodegithubpreprod armorcodegithubpreprod bot mentioned this pull request Mar 14, 2024
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@hifoolno @carnil @tcullum-rh @urban-warrior