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Bug 1234938 - (CVE-2015-4643) CVE-2015-4643 php: integer overflow in ftp_genlist() resulting in heap overflow (improved fix for CVE-2015-4022)
CVE-2015-4643 php: integer overflow in ftp_genlist() resulting in heap overfl...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20150611,repor...
: Security
Depends On: 1234942
Blocks: 1234941
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Reported: 2015-06-23 10:26 EDT by Vasyl Kaigorodov
Modified: 2015-07-13 03:34 EDT (History)
6 users (show)

See Also:
Fixed In Version: php 5.4.42, php 5.5.26, php 5.6.10
Doc Type: Bug Fix
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Last Closed: 2015-07-10 12:34:16 EDT
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Description Vasyl Kaigorodov 2015-06-23 10:26:42 EDT
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 10:35:50 EDT
Created php tracking bugs for this issue:

Affects: fedora-all [bug 1234942]
Comment 2 Tomas Hoger 2015-07-10 12:34:16 EDT
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

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