Problemi se javljaju zbog funkcije sapi_header_op koja nepravilno rukuje s %0D sekvencama, te zbog neodgovarajućeg rukovanja s ponekim HTTP nizovima. Problemi se također javljaju prilikom rada s velikim brojem datoteka te kod neispravnog parsiranja PDO izjava.
Posljedica:
Zlonamjerni korisnik je mogao iskoristiti propuste kako bi zaobišao postavljena ograničenja u pojedinim internetskim preglednicima, proizvoljno izvodio programski kod ili kako bi uskratio usluge.
==========================================================================
Ubuntu Security Notice USN-1569-1
September 17, 2012
php5 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS
Summary:
Several security issues were fixed in PHP.
Software Description:
- php5: HTML-embedded scripting language interpreter
Details:
It was discovered that PHP incorrectly handled certain character sequences
when applying HTTP response-splitting protection. A remote attacker could
create a specially-crafted URL and inject arbitrary headers.
(CVE-2011-1398, CVE-2012-4388)
It was discovered that PHP incorrectly handled directories with a large
number of files. This could allow a remote attacker to execute arbitrary
code with the privileges of the web server, or to perform a denial of
service. (CVE-2012-2688)
It was discovered that PHP incorrectly parsed certain PDO prepared
statements. A remote attacker could use this flaw to cause PHP to crash,
leading to a denial of service. (CVE-2012-3450)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
php5 5.3.10-1ubuntu3.4
Ubuntu 11.10:
php5 5.3.6-13ubuntu3.9
Ubuntu 11.04:
php5 5.3.5-1ubuntu7.11
Ubuntu 10.04 LTS:
php5 5.3.2-1ubuntu4.18
Ubuntu 8.04 LTS:
php5 5.2.4-2ubuntu5.26
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1569-1
CVE-2011-1398, CVE-2012-2688, CVE-2012-3450, CVE-2012-4388
Package Information:
https://launchpad.net/ubuntu/+source/php5/5.3.10-1ubuntu3.4
https://launchpad.net/ubuntu/+source/php5/5.3.6-13ubuntu3.9
https://launchpad.net/ubuntu/+source/php5/5.3.5-1ubuntu7.11
https://launchpad.net/ubuntu/+source/php5/5.3.2-1ubuntu4.18
https://launchpad.net/ubuntu/+source/php5/5.2.4-2ubuntu5.26
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