Bugfix and security release: Fileinfo: Fixed bug #68283 (fileinfo: out-of-bounds read in elf note headers). (CVE-2014-3710) I've been running these on 20 servers since the release on amd64.
On a newly installed machine I encountered a problem with reloading php-fpm instances (https://bugs.gentoo.org/show_bug.cgi?id=531354). 5.5.20 is RC1 with some fixes regarding PHP-FPM (https://github.com/php/php-src/blob/PHP-5.5.20/NEWS)
Added to existing GLSA. Putting in cleanup state due to PHP 5.3 still being in tree.
Cleanup would be done in bug #533998
This issue was resolved and addressed in GLSA 201503-03 at http://security.gentoo.org/glsa/glsa-201503-03.xml by GLSA coordinator Kristian Fiskerstrand (K_F).