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Posted to issues@commons.apache.org by "Bruno P. Kinoshita (Jira)" <ji...@apache.org> on 2022/08/14 01:51:00 UTC

[jira] [Updated] (IMAGING-332) OutOfMemory with invalid PNG input file

     [ https://issues.apache.org/jira/browse/IMAGING-332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bruno P. Kinoshita updated IMAGING-332:
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    Attachment: image-2022-08-14-13-50-28-786.png

> OutOfMemory with invalid PNG input file
> ---------------------------------------
>
>                 Key: IMAGING-332
>                 URL: https://issues.apache.org/jira/browse/IMAGING-332
>             Project: Commons Imaging
>          Issue Type: Bug
>          Components: Format: PNG
>    Affects Versions: 1.0-alpha3
>            Reporter: Dominik Stadler
>            Priority: Blocker
>              Labels: fuzzer
>         Attachments: image-2022-08-14-13-50-28-786.png
>
>
> The following snippet will cause an OOM as it tries to allocate a huge byte-array.
>  
> {code:java}
> byte[] input = java.util.Base64.getDecoder().decode("iVBORw0KGgoAAAAbaUNDUMlDQyCrbAAtGHZwQWdQyUNDIKtsAAAYiVBORw0KGgp1AAAASURBVA0KGgoAAAANSUhEUgAAACAAIAQACAJ/2QAAsnMAAAAAAElFTkRCYAAY");
> Imaging.getAllBufferedImages(input); {code}
> All such allocations should be guarded by some limits, see e.g. [https://poi.apache.org/apidocs/dev/org/apache/poi/util/IOUtils.html#safelyAllocate-long-int-] for how Apache POI supports a configurable limit for allocations.
>  



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