#47877 [Com]: ALERT - canary mismatch on efree() - heap overflow detected

From: Date: Fri, 10 Jul 2009 02:30:54 +0000
Subject: #47877 [Com]: ALERT - canary mismatch on efree() - heap overflow detected
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-139561@lists.php.net to get a copy of this message 
 ID:               47877
 Comment by:       synec dot net at gmail dot com
 Reported By:      leif at neland dot dk
 Status:           No Feedback
 Bug Type:         MSSQL related
 Operating System: Debian 5
 PHP Version:      5.2.9
 New Comment:

run 'php -v' on CLI.

ALERT - canary mismatch on efree() - heap overflow detected (attacker 
'REMOTE_ADDR not set', file 'unknown')

Install php v5.2.10 by FreeBSD ports.
Using options are 'CLI, CGI, APACHE, SUHOSIN, MULTIBYTE, IPV6,
MAILHEAD, 
REDIRECT, DISCARD, FASTCGI, PATHINFO'


Previous Comments:
------------------------------------------------------------------------

[2009-04-11 01:00:00] php-bugs at lists dot php dot net

No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".

------------------------------------------------------------------------

[2009-04-03 03:00:29] kalle@php.net

Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves. 

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external 
resources such as databases, etc. If the script requires a 
database to demonstrate the issue, please make sure it creates 
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.

Aswell as a backtrace would help give some insight on the matter for
the maintainer

------------------------------------------------------------------------

[2009-04-02 12:22:02] leif at neland dot dk

Description:
------------
Basically the same bug as 43861, it seems.

Some mssql-queries triggers

ALERT - canary mismatch on efree() - heap overflow detected

I'm willing to patch, submit traces etc :-)


Reproduce code:
---------------
Code probably irrellevant.

Expected result:
----------------
No errors in the log



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