Debian has updated xulrunner (multiple vulnerabilities), ffmpeg (multiple vulnerabilities), php5 (multiple vulnerabilities), and polipo (denial of service).
Fedora has updated systemtap (F11, F12: multiple vulnerabilities), F11: bltk (privilege escalation), and F12: krb5 (denial of service).
Mandriva has updated kernel (multiple vulnerabilities) and firefox (multiple vulnerabilities).
SUSE has updated kernel (multiple vulnerabilities).
Ubuntu has updated xmlrpc-c (denial of service).
Read more at LWN