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Family: Mandrake Local Security Checks --> Category: infos

MDKSA-2006:185: php Vulnerability Scan

Vulnerability Scan Summary
Check for the version of the php package

Detailed Explanation for this Vulnerability Test

The remote host is missing the patch for the advisory MDKSA-2006:185 (php).

PHP 4.x up to 4.4.4 and PHP 5 up to 5.1.6 allows local users to bypass
certain Apache HTTP Server httpd.conf options, such as safe_mode and
open_basedir, via the ini_restore function, which resets the values to
their php.ini (Master Value) defaults. (CVE-2006-4625)
A race condition in the symlink function in PHP 5.1.6 and earlier
allows local users to bypass the open_basedir restriction by using a
combination of symlink, mkdir, and unlink functions to change the file
path after the open_basedir check and before the file is opened by the
underlying system, as demonstrated by symlinking a symlink into a
subdirectory, to point to a parent directory via .. (dot dot)
sequences, and then unlinking the resulting symlink. (CVE-2006-5178)
Because the design flaw cannot be solved it is strongly recommended to
disable the symlink() function if you are using the open_basedir
feature. You can achieve that by adding symlink to the list of disabled
functions within your php.ini: disable_functions=...,symlink
The updated packages do not alter the system php.ini.
Updated packages have been patched to correct the CVE-2006-4625 issue.
Users must restart Apache for the changes to take effect.

Solution :
Threat Level: High

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