Updated Thunderbird packages has been released for Debian GNU/Linux 7 LTS, 8, and 9:

DLA 1153-1: icedove/thunderbird security update
DSA 4014-1: thunderbird security update

DLA 1153-1: icedove/thunderbird security update

Package : thunderbird
Version : 1:52.4.0-1~deb7u1
CVE ID : CVE-2017-7793 CVE-2017-7805 CVE-2017-7810 CVE-2017-7814
CVE-2017-7818 CVE-2017-7819 CVE-2017-7823 CVE-2017-7824
CVE-2017-7825

Multiple security issues have been found in the Mozilla Thunderbird mail
client: Multiple memory safety errors, buffer overflows and other
implementation errors may lead to crashes or the execution of arbitrary
code.

With this update the source package name changes from icedove to
thunderbird so icedove will not be mentioned anymore in future
advisories.

For Debian 7 "Wheezy", these problems have been fixed in version
1:52.4.0-1~deb7u1.

We recommend that you upgrade your thunderbird packages.

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

DSA 4014-1: thunderbird security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-4014-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
November 01, 2017 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : thunderbird
CVE ID : CVE-2017-7793 CVE-2017-7805 CVE-2017-7810 CVE-2017-7814
CVE-2017-7818 CVE-2017-7819 CVE-2017-7823 CVE-2017-7824

Multiple security issues have been found in Thunderbird, which may lead
to the execution of arbitrary code or denial of service.

For the oldstable distribution (jessie), these problems have been fixed
in version 1:52.4.0-1~deb8u1.

For the stable distribution (stretch), these problems have been fixed in
version 1:52.4.0-1~deb9u1.

We recommend that you upgrade your thunderbird packages.

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/