drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in PHP
Name: |
Mehrere Probleme in PHP |
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ID: |
USN-1358-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10, Ubuntu 11.04, Ubuntu 11.10 |
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Datum: |
Fr, 10. Februar 2012, 12:17 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0441
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4153
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4885
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0057
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0788
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0830
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0831
http://www.php.net/manual/en/info.configuration.php#ini.max-input-vars |
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Applikationen: |
PHP |
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Originalnachricht |
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========================================================================== 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
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