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Category:   Application (Generic)  >   PHP Vendors:   PHP Group
PHP Integer Overflows Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1032433
SecurityTracker URL:  http://securitytracker.com/id/1032433
CVE Reference:   CVE-2015-4021, CVE-2015-4022   (Links to External Site)
Date:  May 29 2015
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to versions 5.4.41, 5.5.25, 5.6.9
Description:   Several vulnerabilities were reported in PHP. A remote user can execute arbitrary code on the target system.

A remote user can create a specially crafted Phar archive that, when processed by the target application, will trigger an integer underflow in phar_parse_tarfile() and cause the application to potentially execute arbitrary code [CVE-2015-4021].

emmanuel dot law at gmail.com reported this vulnerability.

A remote FTP server can return a specially crafted reply to trigger a heap overflow in the FTP extension in the parsing of file listings and cause the application to potentially execute arbitrary code [CVE-2015-4022].

Max Spelsberg reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fix (5.4.41, 5.5.25, 5.6.9).

The vendor's advisory is available at:

http://php.net/ChangeLog-5.php#5.6.9

Vendor URL:  php.net/ChangeLog-5.php#5.6.9 (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.
Jul 10 2015 (Red Hat Issues Fix) PHP Integer Overflows Let Remote Users Execute Arbitrary Code
Red Hat has issued a fix for Red Hat Enterprise Linux 6, 6.5, 6.6, 7, and 7.1.



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