From:
Operating system:
PHP version: 5.3.3
Package: PDO related
Bug Type: Bug
Bug description:Some calls to pdo_firebird getAttribute crash
Description:
------------
There is a bug and a few omissions in firebird_handle_get_attribute.
Most significantly it declares tmp[200] which is used to store the server
version. Unfortunately, a typical server version string is now over 300
bytes
long. So this call just blows the driver out of the water, leaves this
error
in the apache log:
*** stack smashing detected ***: /usr/sbin/httpd2-prefork terminated
[Tue Nov 16 13:42:53 2010] [notice] child pid 11656 exit signal
Segmentation
fault (11)
and the user is left staring at a server timeout error in the browser. This
is
easily fixed by declaring tmp[] to be larger.
Less seriously, these attributes are not handled:
PDO_ATTR_PREFETCH,
PDO_ATTR_TIMEOUT,
PDO_ATTR_FETCH_TABLE_NAMES
so if they are called outside a try..catch then the call will fail badly.
It
is not obvious that a try..catch should be required so it is probably
better
to just handle these cases in the driver.
I've attached a patch which fixes all of these issues.
--
Edit bug report at http://bugs.php.net/bug.php?id=53323&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=53323&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=53323&r=trysnapshot53
Try a snapshot (trunk):
http://bugs.php.net/fix.php?id=53323&r=trysnapshottrunk
Fixed in SVN:
http://bugs.php.net/fix.php?id=53323&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=53323&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=53323&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=53323&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=53323&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=53323&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=53323&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=53323&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=53323&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=53323&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=53323&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53323&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=53323&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=53323&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=53323&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=53323&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=53323&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=53323&r=mysqlcfg
