Tiff Security Update for Debian 7 LTS
Posted on: 12/13/2017 08:49 AM

Updated tiff packages has been released for Debian GNU/Linux 7 LTS

Tiff Security Update for Debian 7 LTS

Package : tiff
Version : 4.0.2-6+deb7u17
CVE ID : CVE-2017-9935
Debian Bug : 866109

In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf
function in tools/tiff2pdf.c. This heap overflow could lead to different
damages. For example, a crafted TIFF document can lead to an out-of-bounds read
in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in
t2p_readwrite_pdf_image, or a double free in t2p_free. Given these
possibilities, it probably could cause arbitrary code execution.

This overflow is linked to an underlying assumption that all pages in a tiff
document will have the same transfer function. There is nothing in the tiff
standard that says this needs to be the case.

For Debian 7 "Wheezy", these problems have been fixed in version

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

Printed from Linux Compatible (http://www.linuxcompatible.org/news/story/tiff_security_update_for_debian_7_lts.html)