Debian published this update:
https://www.debian.org/security/2015/dsa-3125

For Wheezy, the version number is still 1.0.1e. However, the description says it solves CVE-2014-8275, which is exactly the change that should trigger the Bitcoin problem.

So, on Debian Wheezy, the latest patched 1.0.1e can also cause problems? I guess I should first apply the Bitcoin patch, before applying this OpenSSL upgrade...