Bug 1315339 (CVE-2016-4344, CVE-2016-4345, CVE-2016-4346)

Summary:	CVE-2016-4344 CVE-2016-4345 CVE-2016-4346 php: Multiple heap overflows due to integer overflows
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abhgupta, dmcphers, fedora, jialiu, jokerman, jorton, kseifried, lmeyer, mmaslano, mmccomas, rcollet, tiwillia, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	php 7.0.4	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-06-13 18:22:27 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	1315340
Bug Blocks:	1315348

Description Adam Mariš 2016-03-07 13:50:24 UTC

Multiple heap-based buffer overflow caused by integer overflows were found in xml_utf8_encode, zend_string_alloc and php_addcslashes functions.

Upstream bug:

https://bugs.php.net/bug.php?id=71637

Upstream patch:

http://git.php.net/?p=php-src.git;a=commit;h=57b997ebf99e0eb9a073e0dafd2ab100bd4a112d

Comment 1 Adam Mariš 2016-03-07 13:51:11 UTC

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1315340]

Comment 2 Andrej Nemec 2016-05-02 14:39:20 UTC

CVE assignments via:

http://seclists.org/oss-sec/2016/q2/163

CVE-2016-4344 is for the issue in:

ext/xml/xml.c

CVE-2016-4345 is for the issue in:

ext/filter/sanitizing_filters.c

CVE-2016-4346 is for the issue in:

ext/standard/string.c

Comment 3 Tomas Hoger 2016-06-13 18:22:27 UTC

PHP 7 only.  Additionally, these issue could only be triggered when PHP is configured to execute scripts with no or very high memory_limit.  That is not a typical configured, the default in PHP packages in Red Hat products is 128M.