From: gz at moonky dot de
Operating system: linux
PHP version: 4.3.10
PHP Bug Type: Reproducible crash
Bug description: chunk_split() segfaults with too high chunklen
Description:
------------
chunk_split() segfaults when chunklen is too big (possible dos?)
Reproduce code:
---------------
<?php
chunk_split(".", 1000000000);
?>
Expected result:
----------------
ehrrm... ;-)
Actual result:
--------------
(gdb) bt
#0 0xb7d79cef in memcpy () from /lib/tls/libc.so.6
#1 0x080e6c21 in php_chunk_split (src=0x81f4afc "", srclen=1,
end=0x8180d20 "\r\n", endlen=2, chunklen=1000000000,
destlen=0xbfffd544) at
/home/moonky/src/php-4.3.9/ext/standard/string.c:1521
#2 0x080e6f98 in zif_chunk_split (ht=2, return_value=0x81ef874,
this_ptr=0x0, return_value_used=0)
at /home/moonky/src/php-4.3.9/ext/standard/string.c:1582
[...]
--
Edit bug report at http://bugs.php.net/?id=31479&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=31479&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=31479&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=31479&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=31479&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=31479&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=31479&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=31479&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=31479&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=31479&r=support
Expected behavior: http://bugs.php.net/fix.php?id=31479&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=31479&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=31479&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=31479&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=31479&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=31479&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=31479&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=31479&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=31479&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=31479&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=31479&r=mysqlcfg
