Uočeni propusti vezani su uz programsku funkciju "exif_process_IFD_TAG" koja uzrokuje preljev međuspremnika te uz neodgovarajući postupak računanja sažetaka (eng. hash).
Posljedica:
Svi propusti mogu se iskoristiti udaljeno, a moguće posljedice su rušenje aplikacije (DoS napad) i otkrivanje memorije.
Rješenje:
Korisnicima se savjetuje primjena izdane nadogradnje.
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Fedora Update Notification
FEDORA-2012-0504
2012-01-14 03:39:06
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Name : php
Product : Fedora 16
Version : 5.3.9
Release : 1.fc16
URL : http://www.php.net/
Summary : PHP scripting language for creating dynamic web sites
Description :
PHP is an HTML-embedded scripting language. PHP attempts to make it
easy for developers to write dynamically generated web pages. PHP also
offers built-in database integration for several commercial and
non-commercial database management systems, so writing a
database-enabled webpage with PHP is fairly simple. The most common
use of PHP coding is probably as a replacement for CGI scripts.
The php package contains the module which adds support for the PHP
language to Apache HTTP Server.
--------------------------------------------------------------------------------
Update Information:
Security Enhancements and Fixes in PHP 5.3.9:
* Added max_input_vars directive to prevent attacks based on hash collisions.
(CVE-2011-4885)
* Fixed bug #60150 (Integer overflow during the parsing of invalid exif header).
(CVE-2011-4566)
Full upstream changelog :
http://www.php.net/ChangeLog-5.php#5.3.9
--------------------------------------------------------------------------------
ChangeLog:
* Wed Jan 11 2012 Remi Collet <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 5.3.9-1
- update to 5.3.9
http://www.php.net/ChangeLog-5.php#5.3.9
- fix owner of /var/log/php-fpm (bug #773077)
- add max_input_vars, max_file_uploads, zend.enable_gc to php.ini
--------------------------------------------------------------------------------
References:
[ 1 ] Bug #773077 - php-fpm: buggy(?) logrotate config
https://bugzilla.redhat.com/show_bug.cgi?id=773077
[ 2 ] Bug #770823 - CVE-2011-4885 php: hash table collisions CPU usage DoS
(oCERT-2011-003) [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=770823
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This update can be installed with the "yum" update program. Use
su -c 'yum update php' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
--------------------------------------------------------------------------------
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