Bug 1377352 – CVE-2016-7418 php: Null pointer dereference in php_wddx_push_element

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Bug 1377352 - (CVE-2016-7418) CVE-2016-7418 php: Null pointer dereference in php_wddx_push_element

Summary:	CVE-2016-7418 php: Null pointer dereference in php_wddx_push_element

Status:	CLOSED WONTFIX

Aliases:	CVE-2016-7418

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20160912,repor...
Keywords:	Security

Depends On:	1377366 1554899
Blocks:	1377365
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Reported:	2016-09-19 09:21 EDT by Adam Mariš
Modified:	2018-05-03 01:05 EDT (History)
CC List:	14 users (show)

See Also:
Fixed In Version:	php 5.6.26, php 7.0.11
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2016-10-12 05:25:49 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:1296	None	None	None	2018-05-03 01:05 EDT

Groups: None (edit)

Description Adam Mariš 2016-09-19 09:21:48 EDT

A null pointer vulnerability was found in function wddx_deserialize.

Upstream bug:

https://bugs.php.net/bug.php?id=73065

Upstream patch:

https://github.com/php/php-src/commit/c4cca4c20e75359c9a13a1f9a36cb7b4e9601d29?w=1

CVE assignment:

http://seclists.org/oss-sec/2016/q3/518

Comment 1 Adam Mariš 2016-09-19 09:38:06 EDT

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1377366]

Comment 2 Huzaifa S. Sidhpurwala 2016-10-12 05:25:49 EDT

This issue happens when untrusted input is unserialized.  Doing so it documented as being unsafe:

  http://php.net/manual/en/function.unserialize.php

  Do not pass untrusted user input to unserialize(). Unserialization can
  result in code being loaded and executed due to object instantiation and
  autoloading, and a malicious user may be able to exploit this. Use a safe,
  standard data interchange format such as JSON (via json_decode() and
  json_encode()) if you need to pass serialized data to the user.

Comment 4 errata-xmlrpc 2018-05-03 01:05:23 EDT

This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS

Via RHSA-2018:1296 https://access.redhat.com/errata/RHSA-2018:1296

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