Edit report at https://bugs.php.net/bug.php?id=60512&edit=1
ID: 60512
Comment by: bmherold at gmail dot com
Reported by: paul dot visco at roswellpark dot org
Summary: pdo_dblib - Seg Fault error on user/pass exceeds 30
chars
Status: Open
Type: Bug
Package: PDO related
Operating System: Centos 5.5/Fedora 16
PHP Version: 5.3.8
Block user comment: N
Private report: N
New Comment:
Has there been any movement on this bug? I'm using freetds 0.91 on OS X 10.7.4
and
php 5.3.13. HTTPD crashes when using a password of over 30 characters as seen
in
the console logs. I can also tail freetds.log and it doesnt even make it in
here -
but only when the password is over 30 chars.
Previous Comments:
------------------------------------------------------------------------
[2011-12-13 16:21:35] paul dot visco at roswellpark dot org
Description:
------------
LIB: freetds-0.91-1
PHP: php 5.3.8
EXT: pdo_dblib from /ext folder of php 5.3.8 source
OS: Fedora 16/Centos 5
I was using pdo_dblib to connect to a MSSQL server db. When the password or
username is longer than 30 chars, a segmentation fault occurrs, crashing PHP.
It would be ideal to instead throw the catchable error from freetds which is
"20042 Name too long for LOGINREC field (severity 2)"
The problem is that the code is not checking to make sure dbproc is not NULL
before processing the error info further. In the case of the password being
longer than 30 chars it is NULL, which then causes the seg fault.
Test script:
---------------
$db = new PDO("dblib:host=someserver;", "uname",
'31charpasswordpasswordpasswordp');
Expected result:
----------------
20042 Name too long for LOGINREC field (severity 2)
Actual result:
--------------
segmentation fault
OUTPUT FROM gdb:
Program received signal SIGSEGV, Segmentation fault.
0x000000390502b0ff in __dcigettext () from /lib64/libc.so.6
(gdb) bt
#0 0x000000390502b0ff in __dcigettext () from /lib64/libc.so.6
#1 0x0000003905079b3c in strerror_r () from /lib64/libc.so.6
#2 0x000000390507997e in strerror () from /lib64/libc.so.6
#3 0x00002aaab26a6815 in ?? () from /usr/lib64/libsybdb.so.5
#4 0x00002aaab26a7aa9 in dbgetuserdata () from /usr/lib64/libsybdb.so.5
#5 0x00002aaab3bc2c59 in error_handler (dbproc=0x39051200a9,
severity=85066262, dberr=0, oserr=0, dberrstr=0x0, oserrstr=0x5 <Address 0x5
out of bounds>)
at /home/ROSWELL/visco/php-5.3.8/ext/pdo_dblib/pdo_dblib.c:98
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Edit this bug report at https://bugs.php.net/bug.php?id=60512&edit=1
