Debian LTS: DLA-1184-1: optipng security update
Summary
For Debian 7 "Wheezy", these problems have been fixed in version
0.6.4-1+deb7u3.
We recommend that you upgrade your optipng packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS