[SECURITY] [DLA 693-1] tiff security update

Package : tiff
Version : 4.0.2-6+deb7u7
CVE ID : CVE-2014-8128 CVE-2015-7554 CVE-2015-8668 CVE-2016-3186
CVE-2016-3619 CVE-2016-3620 CVE-2016-3621 CVE-2016-3631
CVE-2016-3632 CVE-2016-3633 CVE-2016-3634 CVE-2016-5102
CVE-2016-5318 CVE-2016-5319 CVE-2016-5652 CVE-2016-6223
CVE-2016-8331
Debian Bug : 842043 842046 842361 842270

The libtiff library and associated tools provided in libtiff-tools are
vulnerable to many security problems.

This update drops many tools which are no longer supported upstream
and which are affected by multiple memory corruption issues:

• bmp2tiff (CVE-2016-3619, CVE-2016-3620, CVE-2016-3621, CVE-2016-5319,
  CVE-2015-8668)
• gif2tiff (CVE-2016-3186, CVE-2016-5102)
• ras2tiff
• sgi2tiff
• sgisv
• ycbcr
• rgb2ycbcr (CVE-2016-3623, CVE-2016-3624)
• thumbnail (CVE-2016-3631, CVE-2016-3632, CVE-2016-3633, CVE-2016-3634,
  CVE-2016-8331)

This update also fixes the following issues:

CVE-2014-8128, CVE-2015-7554, CVE-2016-5318

Multiple buffer overflows triggered through TIFFGetField() on unknown
tags. Lacking an upstream fix, the list of known tags has been
extended to cover all those that are in use by the TIFF tools.

CVE-2016-5652

Heap based buffer overflow in tiff2pdf.

CVE-2016-6223

Information leak in libtiff/tif_read.c. Fix out-of-bounds read on
memory-mapped files in TIFFReadRawStrip1() and TIFFReadRawTile1()
when stripoffset is beyond tmsize_t max value (reported by
Mathias Svensson).

For Debian 7 "Wheezy", these problems have been fixed in version
4.0.2-6+deb7u7.

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

–
Raphaël Hertzog ◈ Debian Developer

Support Debian LTS: http://www.freexian.com/services/debian-lts.html
Learn to master Debian: http://debian-handbook.info/get/
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