PHP :: Bug #31479 :: chunk_split() segfaults with too high chunklen

 [2005-01-10 22:57 UTC] gz at moonky dot de

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
[...]

 [2005-01-18 16:49 UTC] iliaa@php.net

This bug has been fixed in CVS.
Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
Thank you for the report, and for helping us make PHP better.