The Debian GNU/Linux /etc/cron.d/php5 cron job for PHP 5.3.5 allows local users to delete arbitrary files via a symlink attack on a directory under /var/lib/php5/.
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=618489
http://git.debian.org/?p=pkg-php/php.git%3Ba=commit%3Bh=d09fd04ed7bfcf7f008360c6a42025108925df09
https://exchange.xforce.ibmcloud.com/vulnerabilities/66180
http://www.mandriva.com/security/advisories?name=MDVSA-2011:069