Gentoo Linux Security Advisory 201308-1 – Multiple vulnerabilities have been found in Putty, allowing attackers to compromise user system. Versions less than 0.63 are affected…. Gentoo Linux Security Advisory 201308-1 – Multiple vulnerabilities have been found in Putty, allowing attackers to compromise user system. Versions less than 0.63 are affected.

Read more http://packetstormsecurity.com/files/122891/glsa-201308-01.txt