LinuxSecurity.com
Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Welcome!
Sign up!
EnGarde Community
Login
Polls
What is the most important Linux security technology?
 
Advisories
Community
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
SELinux
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Securitydistro
Latest Newsletters
Linux Advisory Watch: September 26th, 2014
Linux Security Week: September 22nd, 2014
Subscribe
LinuxSecurity Newsletters
E-mail:
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

  
Ubuntu: 1358-1: PHP vulnerabilities Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Ubuntu Multiple vulnerabilities in PHP.
==========================================================================
Ubuntu Security Notice USN-1358-1
February 10, 2012

php5 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Multiple vulnerabilities in PHP.

Software Description:
- php5: HTML-embedded scripting language interpreter

Details:

It was discovered that PHP computed hash values for form parameters
without restricting the ability to trigger hash collisions predictably.
This could allow a remote attacker to cause a denial of service by
sending many crafted parameters. (CVE-2011-4885)

ATTENTION: this update changes previous PHP behavior by
limiting the number of external input variables to 1000.
This may be increased by adding a "max_input_vars"
directive to the php.ini configuration file. See
http://www.php.net/manual/en/info.configuration.php#ini.max-input-vars
for more information.

Stefan Esser discovered that the fix to address the predictable hash
collision issue, CVE-2011-4885, did not properly handle the situation
where the limit was reached. This could allow a remote attacker to
cause a denial of service or execute arbitrary code via a request
containing a large number of variables. (CVE-2012-0830)

It was discovered that PHP did not always check the return value of
the zend_strndup function. This could allow a remote attacker to
cause a denial of service. (CVE-2011-4153)

It was discovered that PHP did not properly enforce libxslt security
settings. This could allow a remote attacker to create arbitrary
files via a crafted XSLT stylesheet that uses the libxslt output
extension. (CVE-2012-0057)

It was discovered that PHP did not properly enforce that PDORow
objects could not be serialized and not be saved in a session. A
remote attacker could use this to cause a denial of service via an
application crash. (CVE-2012-0788)

It was discovered that PHP allowed the magic_quotes_gpc setting to
be disabled remotely. This could allow a remote attacker to bypass
restrictions that could prevent an SQL injection. (CVE-2012-0831)

USN 1126-1 addressed an issue where the /etc/cron.d/php5 cron job
for PHP allowed local users to delete arbitrary files via a symlink
attack on a directory under /var/lib/php5/. Emese Revfy discovered
that the fix had not been applied to PHP for Ubuntu 10.04 LTS. This
update corrects the issue. We apologize for the error. (CVE-2011-0441)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.10:
  libapache2-mod-php5             5.3.6-13ubuntu3.5
  php5                            5.3.6-13ubuntu3.5
  php5-cgi                        5.3.6-13ubuntu3.5
  php5-cli                        5.3.6-13ubuntu3.5
  php5-common                     5.3.6-13ubuntu3.5
  php5-xsl                        5.3.6-13ubuntu3.5

Ubuntu 11.04:
  libapache2-mod-php5             5.3.5-1ubuntu7.6
  php5                            5.3.5-1ubuntu7.6
  php5-cgi                        5.3.5-1ubuntu7.6
  php5-cli                        5.3.5-1ubuntu7.6
  php5-common                     5.3.5-1ubuntu7.6
  php5-xsl                        5.3.5-1ubuntu7.6

Ubuntu 10.10:
  libapache2-mod-php5             5.3.3-1ubuntu9.9
  php5                            5.3.3-1ubuntu9.9
  php5-cgi                        5.3.3-1ubuntu9.9
  php5-cli                        5.3.3-1ubuntu9.9
  php5-common                     5.3.3-1ubuntu9.9
  php5-xsl                        5.3.3-1ubuntu9.9

Ubuntu 10.04 LTS:
  libapache2-mod-php5             5.3.2-1ubuntu4.13
  php5                            5.3.2-1ubuntu4.13
  php5-cgi                        5.3.2-1ubuntu4.13
  php5-cli                        5.3.2-1ubuntu4.13
  php5-common                     5.3.2-1ubuntu4.13
  php5-xsl                        5.3.2-1ubuntu4.13

Ubuntu 8.04 LTS:
  libapache2-mod-php5             5.2.4-2ubuntu5.22
  php5                            5.2.4-2ubuntu5.22
  php5-cgi                        5.2.4-2ubuntu5.22
  php5-cli                        5.2.4-2ubuntu5.22
  php5-common                     5.2.4-2ubuntu5.22
  php5-xsl                        5.2.4-2ubuntu5.22

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1358-1
  CVE-2011-0441, CVE-2011-4153, CVE-2011-4885, CVE-2012-0057,
  CVE-2012-0788, CVE-2012-0830, CVE-2012-0831

Package Information:
  https://launchpad.net/ubuntu/+source/php5/5.3.6-13ubuntu3.5
  https://launchpad.net/ubuntu/+source/php5/5.3.5-1ubuntu7.6
  https://launchpad.net/ubuntu/+source/php5/5.3.3-1ubuntu9.9
  https://launchpad.net/ubuntu/+source/php5/5.3.2-1ubuntu4.13
  https://launchpad.net/ubuntu/+source/php5/5.2.4-2ubuntu5.22


 
< Prev   Next >
    
Partner

 

Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
Honeypot Snares Two Bots Exploiting Bash Vulnerability
CloudFlare Rolls Out Free SSL
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2014 Guardian Digital, Inc. All rights reserved.