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Category:   Application (Generic)  >   PHP Vendors:   PHP Group
PHP Heap Overflow in ereg Extension Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1031947
SecurityTracker URL:  http://securitytracker.com/id/1031947
CVE Reference:   CVE-2015-2305   (Links to External Site)
Updated:  Mar 25 2015
Original Entry Date:  Mar 19 2015
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to versions 5.4.39, 5.5.23, 5.6.7
Description:   A vulnerability was reported in PHP. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted data to an application to trigger a heap overflow in the ereg extension and execute arbitrary code on the target system.

The vulnerability resides in the Henry Spencer regex library.

Only 32-bit systems are affected.

The original advisory is available at:

https://guidovranken.wordpress.com/2015/02/04/full-disclosure-heap-overflow-in-h-spencers-regex-library-on-32-bit-systems/

Guido Vranken reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fix (5.4.39, 5.5.23, 5.6.7).

The vendor's advisories are available at:

http://php.net/ChangeLog-5.php#5.4.39
http://php.net/ChangeLog-5.php#5.5.23
http://php.net/ChangeLog-5.php#5.6.7

Vendor URL:  php.net/ChangeLog-5.php#5.6.7 (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Apr 20 2015 (Ubuntu Issues Fix) PHP Heap Overflow in ereg Extension Lets Remote Users Execute Arbitrary Code
Ubuntu has issued a fix for Ubuntu 10.04 LTS, 12.04 LTS, 14.04 LTS, and 14.10.
Jun 4 2015 (Red Hat Issues Fix) PHP Heap Overflow in ereg Extension Lets Remote Users Execute Arbitrary Code
Red Hat has issued a fix for Red Hat Enterprise Linux 6, 6.5, 6.6, and 7.
Jun 4 2015 (Red Hat Issues Fix) PHP Heap Overflow in ereg Extension Lets Remote Users Execute Arbitrary Code
Red Hat has issued a fix for php55 for Red Hat Enterprise Linux 6, 6.5, 6.6, and 7.
Oct 1 2015 (Apple Issues Fix for Apple OS X) PHP Heap Overflow in ereg Extension Lets Remote Users Execute Arbitrary Code
Apple has issued a fix for Apple OS X.



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