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Category:   Application (Generic)  >   PHP Vendors:   PHP Group
(Ubuntu Issues Fix) PHP Multiple Flaws Let Remote and Local Users Obtain Potentially Sensitive Information, Deny Service, and Execute Arbitrary Code
SecurityTracker Alert ID:  1037819
SecurityTracker URL:  http://securitytracker.com/id/1037819
CVE Reference:   CVE-2016-7479, CVE-2016-10158, CVE-2016-10159, CVE-2016-10160, CVE-2016-10161   (Links to External Site)
Date:  Feb 15 2017
Impact:   Denial of service via local system, Denial of service via network, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.6.x, 7.0.x
Description:   Multiple vulnerabilities were reported in PHP. A remote or local user can cause denial of service conditions on the target system. A remote or local user can obtain potentially sensitive information on the target system. A remote or local user can execute arbitrary code on the target system.

A use-after-free memory error may occur in GD in the imagepng() function. Version 5.6.x is affected.

A out-of-bounds heap read error may occur in finish_nested_data() [CVE-2016-10161]. Version 7.0.x is affected.

A null pointer dereference may occur in unserializing a PHP object [CVE-2016-10162]. Version 7.0.x is affected.

The unserialize() function may use uninitialized memory [CVE-2017-5340]. Version 7.0.x is affected.

A use-after-free memory error may occur when resizing an unserialized object's properties hash table [CVE-2016-7479]. Version 7.0.x is affected.

A divide error may occur in exif_convert_any_to_int() when parsing an EXIF tag format [CVE-2016-10158].

A use-after-free memory error may occur in unserialize()). Version 7.0.x is affected.

A type confusion error may occur in object deserialization. Version 7.0.x is affected.

A signed integer overflow may occur in 'gd_io.c' [CVE-2016-10168].

A denial of service error may occur in gdImageCreateFromGd2Ctx() [CVE-2016-10167].

A type confusion error may occur in GMP deserialization. Version 7.0.x is affected.

A memory leak may occur in preg_*() functions. Version 7.0.x is affected.

A memory corruption error may occur in phar [CVE-2016-10160].

A crash may occur when loading a phar archive [CVE-2016-10159].

A memory leak may occur in ReflectionObject. Version 7.0.x is affected.

The specific impact depends on the application using PHP.

Impact:   A remote or local user can cause denial of service conditions.

A remote or local user can execute arbitrary code on the target system.

A remote or local user can obtain potentially sensitive information on the target system.

Solution:   Ubuntu has issued a fix for CVE-2016-10158, CVE-2016-10159, CVE-2016-10160, CVE-2016-10161, and CVE-2016-7479.

The Ubuntu advisory is available at:

http://www.ubuntu.com/usn/usn-3196-1

Vendor URL:  www.ubuntu.com/usn/usn-3196-1 (Links to External Site)
Cause:   Access control error, Boundary error, Not specified, State error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  12.04 LTS, 14.04 LTS

Message History:   This archive entry is a follow-up to the message listed below.
Jan 20 2017 PHP Multiple Flaws Let Remote and Local Users Obtain Potentially Sensitive Information, Deny Service, and Execute Arbitrary Code



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