Bug 1234938 (CVE-2015-4643)

Summary:	CVE-2015-4643 php: integer overflow in ftp_genlist() resulting in heap overflow (improved fix for CVE-2015-4022)
Product:	[Other] Security Response	Reporter:	Vasyl Kaigorodov <vkaigoro>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	fedora, jorton, jrusnack, mmaslano, rcollet, webstack-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	php 5.4.42, php 5.5.26, php 5.6.10	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-07-10 16:34:16 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:	1234942
Bug Blocks:	1234941

Description Vasyl Kaigorodov 2015-06-23 14:26:42 UTC

PHP versions 5.4.42, 5.5.26, and 5.6.10 provide improved fix for CVE-2015-4022:

Improved fix for bug #69545 (Integer overflow in ftp_genlist() resulting in heap overflow).

Upstream bug:
https://bugs.php.net/bug.php?id=69545#1431550655

Upstream fix:

http://git.php.net/?p=php-src.git;a=commitdiff;h=0765623d6991b62ffcd93ddb6be8a5203a2fa7e2

The #69545 bug was originally fixed in 5.4.41 / 5.5.25 / 5.6.9 and got CVE-2015-4022 (see bug 1223412), but the fix was found to be incomplete, as explained in the upstream bug.

Comment 1 Vasyl Kaigorodov 2015-06-23 14:35:50 UTC

Created php tracking bugs for this issue:

Affects: fedora-all [bug 1234942]

Comment 2 Tomas Hoger 2015-07-10 16:34:16 UTC

As noted in the description, this CVE was assigned to an incomplete fix of CVE-2015-4022.  All PHP updates for Red Hat Enterprise Linux and Red Hat Software Collections that corrected the original issue CVE-2015-4022 included complete fix and hence also corrected CVE-2015-4643.  Fixes are included in the following errata:

Red Hat Enterprise Linux 6
https://rhn.redhat.com/errata/RHSA-2015-1218.html

Red Hat Enterprise Linux 7
https://rhn.redhat.com/errata/RHSA-2015-1135.html

Red Hat Software Collections
https://rhn.redhat.com/errata/RHSA-2015-1219.html  php54-php
https://rhn.redhat.com/errata/RHSA-2015-1186.html  php55-php
https://rhn.redhat.com/errata/RHSA-2015-1187.html  rh-php56-php