Vigil@nce - libtiff: buffer overflow of gif2tiff
May 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can generate a buffer overflow in gif2tiff of libtiff,
in order to trigger a denial of service, and possibly to run code.
Impacted products: LibTIFF, openSUSE.
Severity: 2/4.
Creation date: 30/03/2016.
DESCRIPTION OF THE VULNERABILITY
The libtiff product offers the gif2tiff tool to convert GIF images
to TIFF.
However, if the size of data is greater than the size of the
storage array, an overflow occurs.
An attacker can therefore generate a buffer overflow in gif2tiff
of libtiff, in order to trigger a denial of service, and possibly
to run code.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/libtiff-buffer-overflow-of-gif2tiff-19267