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=========================================================== Ubuntu Security Notice USN-66-1 January 20, 2005 php4 vulnerabilities http://www.securitytracker.com/alerts/2004/Oct/1011984.html http://www.securityfocus.com/archive/1/384920 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 4.10 (Warty Warthog) The following packages are affected: libapache2-mod-php4 php4-cgi php4-curl The problem can be corrected by upgrading the affected package to version 4:4.3.8-3ubuntu7.3. In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: FraMe from kernelpanik.org reported that the cURL module does not respect open_basedir restrictions. As a result, scripts which used cURL to open files with an user-specified path could read arbitrary local files outside of the open_basedir directory. Stefano Di Paola discovered a vulnerability in PHP's shmop_write() function. Its "offset" parameter was not checked for negative values, which allowed an attacker to write arbitrary data to arbitrary memory locations. A script which passed unchecked parameters to shmop_write() could possibly be exploited to execute arbitrary code with the privileges of the web server and to bypass safe mode restrictions.