Bug 1323114 (CVE-2016-4070)

Summary: CVE-2016-4070 php: Integer overflow in php_raw_url_encode
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: abhgupta, dmcphers, fedora, hhorak, jialiu, jokerman, jorton, kseifried, lmeyer, mmaslano, mmccomas, rcollet, sardella, tiwillia, webstack-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: php 5.5.34, php 5.6.20, php 7.0.5 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-06-23 11:03:57 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1323117    
Bug Blocks: 1323121    

Description Adam Mariš 2016-04-01 10:17:44 UTC 
An integer overflow vulnerability was found in php_raw_url_encode function.

Vulnerable code:

PHPAPI char *php_raw_url_encode(char const *s, int len, int *new_length)
{
	register int x, y;
	unsigned char *str;

	str = (unsigned char *) safe_emalloc(3, len, 1);
	for (x = 0, y = 0; len--; x++, y++) {
	str[y] = (unsigned char) s[x];

Upstream bug:

https://bugs.php.net/bug.php?id=71798

Upstream patch:

https://git.php.net/?p=php-src.git;a=commit;h=95433e8e339dbb6b5d5541473c1661db6ba2c451
Comment 1 Adam Mariš 2016-04-01 10:20:48 UTC 
Created php tracking bugs for this issue:

Affects: fedora-all [bug 1323117]
Comment 2 Fedora Update System 2016-04-09 14:20:49 UTC 
php-5.6.20-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 3 Fedora Update System 2016-04-09 14:22:20 UTC 
php-5.6.20-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 5 errata-xmlrpc 2016-11-15 11:50:54 UTC 
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 7.2 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS

Via RHSA-2016:2750 https://rhn.redhat.com/errata/RHSA-2016-2750.html