Package: libtiff-tools
Version: 3.7.4-1
Severity: important
Tags: security patch

Hi!

A buffer overflow has been discovered in tiff2pdf which can be used at
least to crash tiff2pdf, and potentially to execute arbitrary code
with user privileges (unverified). This is the Ubuntu patch

  http://patches.ubuntu.com/patches/tiff.tiff2pdf-octal-printf.patch

which fixes the sprintf to use a char-sized number instead of an
integer-sized, so that e. g. -1 ends up as \377 instead of
\37777777777, and the 5-byte buffer isn't overflown.

(Patch contains our changelog in the header).

Thanks,

Martin

-- 
Martin Pitt        http://www.piware.de
Ubuntu Developer   http://www.ubuntu.com
Debian Developer   http://www.debian.org

In a world without walls and fences, who needs Windows and Gates?

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