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https://issues.apache.org/jira/browse/DERBY-4088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Knut Anders Hatlen resolved DERBY-4088.
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Resolution: Fixed
Fix Version/s: 10.4.2.1
Derby Info: (was: [Patch Available])
Committed derby-4088-2.diff to 10.5 with revision 755906.
Committed derby-4088.diff and derby-4088-2.diff to 10.4 with revision 755907.
> DDMReader readBytes ArrayIndexOutOfBoundsException
> --------------------------------------------------
>
> Key: DERBY-4088
> URL: https://issues.apache.org/jira/browse/DERBY-4088
> Project: Derby
> Issue Type: Bug
> Components: Network Server
> Affects Versions: 10.4.2.0
> Environment: CentOS 5, java 1.6.0_11
> Reporter: Urban Widmark
> Assignee: Knut Anders Hatlen
> Fix For: 10.4.2.1, 10.5.0.0
>
> Attachments: derby-4088-2.diff, derby-4088.diff, derby-ddm.patch,
> DerbyBug.java
>
>
> DDMReader.readBytes(int length) checks the length vs
> DssConstants.MAX_DSS_LENGTH, but ignores the fact that the buffer position
> "pos" might not be 0. If pos is non-zero then the pos + length can be larger
> than the size of "buffer" causing an ArrayIndexOutOfBoundsException.
> For me this happened when sending a BLOB that was 32766 bytes long. The value
> of pos was 2 in that method.
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