CVE-2018-18509 (retired)

A flaw during verification of certain S/MIME signatures causes emails to be
shown in Thunderbird as having a valid digital signature, even if the shown
message contents aren't covered by the signature. The flaw allows an
attacker to reuse a valid S/MIME signature to craft an email message with
arbitrary content. This vulnerability affects Thunderbird < 60.5.1.
Upstream:released (60.5.1)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):released (1:60.5.1+build2-0ubuntu0.16.04.1)
Ubuntu 18.04 LTS (Bionic Beaver):released (1:60.5.1+build2-0ubuntu0.18.04.1)
Ubuntu 19.04 (Disco Dingo):released (1:60.5.1+build2-0ubuntu1)
More Information

Updated: 2019-08-23 09:32:10 UTC (commit 436fd4ed4cf0038ddd382cb8649607ace163dda7)