Debian: DSA-4392-1 Moderate: Thunderbird Security Issues

Multiple security issues have been found in the Thunderbird mail client,
which could lead to the execution of arbitrary code, denial of service
or spoofing of S/MIME signatures.

For the stable distribution (stretch), these problems have been fixed in
version 1:60.5.1-1~deb9u1.

We recommend that you upgrade your thunderbird packages.

For the detailed security status of thunderbird please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/thunderbird

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/