Mandriva Linux Security Advisory 2009-065 – A vulnerability in the cURL library in PHP allowed context-dependent attackers to bypass safe_mode and open_basedir restrictions and read arbitrary files using a special URL request. Improved mbfl_filt_conv_html_dec_flush() error handling in ext/mbstring/libmbfl/filters/mbfilter_htmlent.c. PHP 4.4.4, 5.1.6, and other versions, when running on Apache, allows local users to modify behavior of other sites hosted on the same web server by modifying the mbstring.func_overload setting within.htaccess, which causes this setting to be applied to other virtual hosts on the same server. The updated packages have been patched to correct these issues.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/75444/MDVSA-2009-065.txt
Source: https://packetstormsecurity.com/files/75444/Mandriva-Linux-Security-Advisory-2009-065.html