Gentoo Linux Security Advisory GLSA 200907-01 – libwmf bundles an old GD version which contains a use-after-free vulnerability. The embedded fork of the GD library introduced a use-after-free vulnerability in a modification which is specific to libwmf. Versions less than 0.2.8.4-r3 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78882/glsa-200907-01.txt
Source: https://packetstormsecurity.com/files/78882/Gentoo-Linux-Security-Advisory-200907-1.html