Bug #47877 [Com]: ALERT - canary mismatch on efree() - heap overflow detected
Edit report at https://bugs.php.net/bug.php?id=47877&edit=1
ID: 47877
Comment by: nelson dot ota at buonny dot com dot br
Reported by: leif at neland dot dk
Summary: ALERT - canary mismatch on efree() - heap overflow
detected
Status: No Feedback
Type: Bug
Package: MSSQL related
Operating System: Debian 5
PHP Version: 5.2.9
Block user comment: N
Private report: N
New Comment:
I have changed mssql.datetimeconvert = Off and work for me!
Previous Comments:
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[2014-02-26 08:14:52] emirhanizmir at gmail dot com
I confirm that nick at ihighteam dot com ' s solution is OK. It solved like a charm.
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[2010-04-23 02:13:32] caesium at gmail dot com
nick at ihighteam dot com's solution works.
I have a rather large dataset I am iterating through and ran into this issue. I can confirm that
Nicks solution is a suitable workaround.
Thanks Nick!
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[2009-08-13 22:16:18] nick at ihighteam dot com
I found a solution here and it works for me!
http://www.nabble.com/-Bug-41297--NEW:-PHP-Suhosin-Patch-creates-a-problem-with-mssql_query%28%29-when-selecting-a-smalldatetime-field-td17693263.html
Steps to Reproduce:
1. Use the default configuration of PHP with the mssql-extension.
2. create a sql-statement that selects a smalldatetimevalue from a MSSQL-Database or use the Script
at the end of this report.
3. the Script dies in the mssql_query()-function
Solution:
I found the following solution that works for me:
1. Open /etc/php.ini
2. "Decomment" the line "mssql.datetimeconvert = On" and change it to
"mssql.datetimeconvert = Off"
3. Restart Apache
4. The Problem dissappears
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[2009-07-10 03:11:23] synec dot net at gmail dot com
I checked extension.ini and remove some lines.
#extension=oci8.so
#extension=recode.so
#extension=pdo_oci.so
and then works fine.
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[2009-07-10 02:30:53] synec dot net at gmail dot com
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'
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