Bug #76276 [NEW]: PCRE Segmentation fault before PHP7

From: Date: Fri, 27 Apr 2018 14:36:35 +0000
Subject: Bug #76276 [NEW]: PCRE Segmentation fault before PHP7
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-214935@lists.php.net to get a copy of this message
From:             drealecs at gmail dot com
Operating system: Linux
PHP version:      5.6.36
Package:          PCRE related
Bug Type:         Bug
Bug description:PCRE Segmentation fault before PHP7

Description:
------------
There seems to be a buffer overflow in all PHP version 4.* and 5.*
but not on PHP 7.*

Test script:
---------------
$string = '';
for ($i = 0; $i < 10000; $i++) {
    $string .= chr(rand(65, 122));
}
echo "Calling preg_match_all()\n";
preg_match_all('/(\D|3)*/', $string, $matches);

echo "It didn't broke php\n";


Expected result:
----------------
Calling preg_match_all()
It didn't broke php

Actual result:
--------------
Calling preg_match_all()

Segmentation fault

-- 
Edit bug report at https://bugs.php.net/bug.php?id=76276&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=76276&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=76276&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=76276&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=76276&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=76276&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=76276&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=76276&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=76276&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=76276&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=76276&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=76276&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=76276&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=76276&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76276&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=76276&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=76276&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=76276&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=76276&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=76276&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=76276&r=mysqlcfg



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