Fedora has issued an advisory on June 6:
Enigmail 2.0.6 has more EFAIL fixes. We have 2.0.5 currently.
Advisory from openSUSE on May 28 with more detail on the issue fixed:
Assigning to the registered maintainer, CC'ing some recent committers/pushers
geiger.david68210, lists.jjorge, marja11, mrambo, nicolas.salguero
Enigmail 126.96.36.199 fixes CVE-2018-12019:
It should be upgraded to 2.0.7:
Advisory from openSUSE on June 15 with the latest fixes: