Red Hat Security Advisory 2013-1452-01 – Vino is a Virtual Network Computing server for GNOME. It allows remote users to connect to a running GNOME session using VNC. A denial of service flaw was found in the way Vino handled certain authenticated requests from clients that were in the deferred state. A remote attacker could use this flaw to make the vino-server process enter an infinite loop when processing those incoming requests. All vino users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The GNOME session must be restarted for this update to take effect…. Red Hat Security Advisory 2013-1452-01 – Vino is a Virtual Network Computing server for GNOME. It allows remote users to connect to a running GNOME session using VNC. A denial of service flaw was found in the way Vino handled certain authenticated requests from clients that were in the deferred state. A remote attacker could use this flaw to make the vino-server process enter an infinite loop when processing those incoming requests. All vino users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. The GNOME session must be restarted for this update to take effect.

Read more http://packetstormsecurity.com/files/123723/RHSA-2013-1452-01.txt