CVE-2017-{15189, 13764}: wheezy not-affected

Vulnerable code not present in 1.12.1+g01b65bf-4+deb8u6~deb7u17.

(also, wheezy and jessie share identical code base, they only have a
slightly different Debian specific patchset)

This is old triage, but still relevant for the ELTS initiative.