The following tiff updates has been released for Debian 7 LTS:

[DLA 983-1] tiff3 security update
[DLA 984-1] tiff security update

[DLA 983-1] tiff3 security update

Package : tiff3
Version : 3.9.6-11+deb7u6
CVE ID : CVE-2016-10095 CVE-2017-9147 CVE-2017-9403 CVE-2017-9404

tiff3 was affected by multiple memory leaks (CVE-2017-9403, CVE-2017-9404)
that could result in denial of service. Furthermore, while the current
version in Debian was already patched for _TIFFVGetField issues
(CVE-2016-10095, CVE-2017-9147), we replaced our Debian-specific patches
by the upstream provided patches to stay closer to upstream.

For Debian 7 "Wheezy", these problems have been fixed in version
3.9.6-11+deb7u6.

We recommend that you upgrade your tiff3 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

[DLA 984-1] tiff security update

Package : tiff
Version : 4.0.2-6+deb7u14
CVE ID : CVE-2016-10095 CVE-2017-9147 CVE-2017-9403 CVE-2017-9404
Debian Bug : 863185 850316

tiff was affected by multiple memory leaks (CVE-2017-9403, CVE-2017-9404)
that could result in denial of service. Furthermore, while the current
version in Debian was already patched for _TIFFVGetField issues
(CVE-2016-10095, CVE-2017-9147), we replaced our Debian-specific patches
by the upstream provided patches to stay closer to upstream.

For Debian 7 "Wheezy", these problems have been fixed in version
4.0.2-6+deb7u14.

We recommend that you upgrade your tiff 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