Debian: DSA-3903-1 High Risk: libtiff Denial Of Service Issues

Multiple vulnerabilities have been discovered in the libtiff library and
the included tools, which may result in denial of service or the
execution of arbitrary code.

For the oldstable distribution (jessie), these problems have been fixed
in version 4.0.3-12.3+deb8u4.

For the stable distribution (stretch), these problems have been fixed in
version 4.0.8-2+deb9u1.

For the testing distribution (buster), these problems have been fixed
in version 4.0.8-3.

For the unstable distribution (sid), these problems have been fixed in
version 4.0.8-3.

We recommend that you upgrade your tiff 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/