[SECURITY] [DLA 1093-1] tiff security update

Package : tiff
Version : 4.0.2-6+deb7u16
CVE ID : CVE-2017-11335 CVE-2017-12944 CVE-2017-13726 CVE-2017-13727
Debian Bug : 868513 872607 873880 873879

Several vulnerabilities have been discovered in the Tag Image File
Format (TIFF) library and its associated tools.

CVE-2017-11335

A heap based buffer overflow via a PlanarConfig=Contig image, which
causes an out-of-bounds write (related to the ZIPDecode function). A
crafted input may lead to a remote denial of service attack or an
arbitrary code execution attack.

CVE-2017-12944

A mishandling of memory allocation for short files allows attackers
to cause a denial of service (allocation failure and application
crash) during a tiff2pdf invocation.

CVE-2017-13726

A reachable assertion abort allows a crafted input to lead to a
remote denial of service attack.

CVE-2017-13727

A reachable assertion abort allows a crafted input to lead to a
remote denial of service attack.

For Debian 7 "Wheezy", these problems have been fixed in version
4.0.2-6+deb7u16.

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
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