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https://issues.apache.org/jira/browse/XERCESJ-1655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Serhiy Palamarchuk updated XERCESJ-1655:
----------------------------------------
    Description: 
UTF8Reader buffer overflow with exception ArrayIndexOutOfBoundsException: 2048 
appears when surrogate is cached and the next read count is more than buffer 
size.

See attached patch with test to get better understanding of preconditions

  was:
UTF8Reader buffer overflow with exception ArrayIndexOutOfBoundsException: 2048 
appears when surrogate is cached and next read count is less than buffer size.

See attached patch with test to get better understanding of preconditions


> UTF8Reader buffer overflow due to incorrect total
> -------------------------------------------------
>
>                 Key: XERCESJ-1655
>                 URL: https://issues.apache.org/jira/browse/XERCESJ-1655
>             Project: Xerces2-J
>          Issue Type: Bug
>          Components: SAX
>    Affects Versions: 2.10.0
>            Reporter: Serhiy Palamarchuk
>         Attachments: fix.diff
>
>
> UTF8Reader buffer overflow with exception ArrayIndexOutOfBoundsException: 
> 2048 appears when surrogate is cached and the next read count is more than 
> buffer size.
> See attached patch with test to get better understanding of preconditions



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