CVE-2019-11755

Published: 27 September 2019

A crafted S/MIME message consisting of an inner encryption layer and an outer SignedData layer was shown as having a valid digital signature, although the signer might have had no access to the contents of the encrypted message, and might have stripped a different signature from the encrypted message. Previous versions had only suppressed showing a digital signature for messages with an outer multipart/signed layer. This vulnerability affects Thunderbird < 68.1.1.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
thunderbird
Launchpad, Ubuntu, Debian
Upstream
Released (68.1.1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(1:68.1.2+build1-0ubuntu1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1:68.2.1+build1-0ubuntu0.18.04.1)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (1:68.7.0+build1-0ubuntu0.16.04.2)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist