Bug 1412686 – CVE-2016-7479 php: Use-after-free vulnerability when resizing the 'properties' hash table of a serialized object

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Bug 1412686 - (CVE-2016-7479) CVE-2016-7479 php: Use-after-free vulnerability when resizing the 'properties' hash table of a serialized object

Summary:	CVE-2016-7479 php: Use-after-free vulnerability when resizing the 'properties...

Status:	NEW

Aliases:	CVE-2016-7479

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=20161227,repor...
Keywords:	Security

Depends On:	1412647 1554540
Blocks:
	Show dependency tree / graph

Reported:	2017-01-12 09:48 EST by Adam Mariš
Modified:	2018-06-29 18:17 EDT (History)
CC List:	8 users (show)

See Also:
Fixed In Version:	php 7.0.15, php 7.1.1
Doc Type:	If docs needed, set a value
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Last Closed:
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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 01:06 EDT

Groups: None (edit)

Description Adam Mariš 2017-01-12 09:48:01 EST

In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution.

Upstream bug (private as of now):

https://bugs.php.net/bug.php?id=73092

External Reference:

https://blog.checkpoint.com/wp-content/uploads/2016/12/PHP_Technical_Report.pdf

Comment 1 Adam Mariš 2017-01-12 10:02:47 EST

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1412647]

Comment 3 errata-xmlrpc 2018-05-03 01:05:57 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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