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Posted to dev@directory.apache.org by "Emmanuel Lecharny (JIRA)" <ji...@apache.org> on 2006/09/21 08:13:22 UTC
[jira] Created: (DIRSERVER-745) Decoding of lengths can fail if the
PDU is splitted
Decoding of lengths can fail if the PDU is splitted
----------------------------------------------------
Key: DIRSERVER-745
URL: http://issues.apache.org/jira/browse/DIRSERVER-745
Project: Directory ApacheDS
Issue Type: Bug
Reporter: Emmanuel Lecharny
Assigned To: Emmanuel Lecharny
While reading the ASN.1 decoder code, I found a pretty nasty case where the decoding can fail during length decoding :
if the length is more than 2 bytes long, and if the PDU is splitted just after the second byte, then we can have a BufferUnderFlowException.
This can occur because we are reading the buffe without controlling that we still have some remaining bytes.
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[jira] Commented: (DIRSERVER-745) Decoding of lengths can fail if
the PDU is splitted
Posted by "Emmanuel Lecharny (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/DIRSERVER-745?page=comments#action_12436439 ]
Emmanuel Lecharny commented on DIRSERVER-745:
---------------------------------------------
This issue is not really likely to occurs :
- we must have a PDU which is more than 256 bytes long
- and the length part should be splitted
However, this is still a serious bug (and easy to fix :). Code reviews are *good*
> Decoding of lengths can fail if the PDU is splitted
> ---------------------------------------------------
>
> Key: DIRSERVER-745
> URL: http://issues.apache.org/jira/browse/DIRSERVER-745
> Project: Directory ApacheDS
> Issue Type: Bug
> Reporter: Emmanuel Lecharny
> Assigned To: Emmanuel Lecharny
>
> While reading the ASN.1 decoder code, I found a pretty nasty case where the decoding can fail during length decoding :
> if the length is more than 2 bytes long, and if the PDU is splitted just after the second byte, then we can have a BufferUnderFlowException.
> This can occur because we are reading the buffe without controlling that we still have some remaining bytes.
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[jira] Resolved: (DIRSERVER-745) Decoding of lengths can fail if
the PDU is splitted
Posted by "Emmanuel Lecharny (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/DIRSERVER-745?page=all ]
Emmanuel Lecharny resolved DIRSERVER-745.
-----------------------------------------
Resolution: Fixed
It has been fixed two weeks ago. It was a bug in the way lengths were handled
> Decoding of lengths can fail if the PDU is splitted
> ---------------------------------------------------
>
> Key: DIRSERVER-745
> URL: http://issues.apache.org/jira/browse/DIRSERVER-745
> Project: Directory ApacheDS
> Issue Type: Bug
> Reporter: Emmanuel Lecharny
> Assigned To: Emmanuel Lecharny
>
> While reading the ASN.1 decoder code, I found a pretty nasty case where the decoding can fail during length decoding :
> if the length is more than 2 bytes long, and if the PDU is splitted just after the second byte, then we can have a BufferUnderFlowException.
> This can occur because we are reading the buffe without controlling that we still have some remaining bytes.
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[jira] Closed: (DIRSERVER-745) Decoding of lengths can fail if the
PDU is splitted
Posted by "Emmanuel Lecharny (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/DIRSERVER-745?page=all ]
Emmanuel Lecharny closed DIRSERVER-745.
---------------------------------------
fixed
> Decoding of lengths can fail if the PDU is splitted
> ---------------------------------------------------
>
> Key: DIRSERVER-745
> URL: http://issues.apache.org/jira/browse/DIRSERVER-745
> Project: Directory ApacheDS
> Issue Type: Bug
> Reporter: Emmanuel Lecharny
> Assigned To: Emmanuel Lecharny
>
> While reading the ASN.1 decoder code, I found a pretty nasty case where the decoding can fail during length decoding :
> if the length is more than 2 bytes long, and if the PDU is splitted just after the second byte, then we can have a BufferUnderFlowException.
> This can occur because we are reading the buffe without controlling that we still have some remaining bytes.
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