openssl - Heartbleed flaw fix on Debian Wheezy

is there any 100% working method to update openssl to the non vulnerable version on Debian Wheezy.
I do not want to upgrade the whole OS, nor would I like to install a non official package.

Is there any solution right now ?

Thanks

Answer

from DSA-2896-1 openssl -- security update :

For the stable distribution (wheezy), this problem has been fixed in version 1.0.1e-2+deb7u5.

so,
assuming you have:

deb http://security.debian.org/ wheezy/updates main contrib non-free

in your /etc/apt/sources.list file

apt-get update

apt-cache policy openssl
apt-get install openssl

apt-cache policy openssl will show you candidate updates

apt-get install openssl will upgrade to last openssl version

run again apt-cache policy openssl and check version at Installed: line is equal or superior to: 1.0.1e-2+deb7u5

upgrading openssl package should upgrade libssl1.0.0 as it's a dependency