[jira] [Resolved] (IMAGING-25) integer overflow unhandled

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[jira] [Resolved] (IMAGING-25) integer overflow unhandled

ASF GitHub Bot (Jira)

     [ https://issues.apache.org/jira/browse/IMAGING-25?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Damjan Jovanovic resolved IMAGING-25.
-------------------------------------

    Resolution: Later

Deferring to after the 1.0 release.
               

> integer overflow unhandled
> --------------------------
>
>                 Key: IMAGING-25
>                 URL: https://issues.apache.org/jira/browse/IMAGING-25
>             Project: Commons Imaging
>          Issue Type: Bug
>          Components: Format: JPEG
>    Affects Versions: 0.94-incubator
>         Environment: win32, 32 bit operating systems
>            Reporter: Greg Squires
>         Attachments: concat-app13.patch, crash.jpeg
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> This function can throw an Exception in ByteSourceArray.java due to a negative byte[] allocation size. The length argument has been found to wrap when called from IccProfileParser.java.
> In 64bit machines, issues related to incorrect metadata, or ICC data can lead to incorrect and excess memory allocations. These large numbers however cause 32bit negative signed values.
> public byte[] getBlock(int start, int length) throws IOException
> {
> if (start + length > bytes.length)
> throw new IOException("Could not read block (block start: " + start
> + ", block length: " + length + ", data length: "
> + bytes.length + ").");
> byte result[] = new byte[length];
> System.arraycopy(bytes, start, result, 0, length);
> return result;
> }

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