Secunia Security Advisory – Gentoo has issued an update for tk. This fixes a vulnerability, which can potentially be exploited by malicious people to compromise an application using the library.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/59866/sa27086.txt
Source: https://packetstormsecurity.com/files/59866/Secunia-Security-Advisory-27086.html