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S-350: Vulnerabilities in Microsoft Office Filters

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Special Forums Cybersecurity Security Advisories (RSS) S-350: Vulnerabilities in Microsoft Office Filters
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Old 08-14-2008
S-350: Vulnerabilities in Microsoft Office Filters
Multiple remote code execution vulnerabilities exists in the way that Microsoft Office filter handles images. An attacker could exploit the vulneraiblity by constructing a specially crafted Encapsulated PostScript (EPS) file that could allow remote code execution if a user opened the file with a Microsoft Office application. The risk is MEDIUM. An attacker who successfully exploited this vulnerability could take complete control of an affected system. However, significant user interaction is required to exploit this vulnerability.


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LEARN ABOUT DEBIAN

pfssize

pfssize(1)						      General Commands Manual							pfssize(1)

NAME

       pfssize - Resize frames

SYNOPSIS

       pfssize [--x <new_width>] [--y <new_height>] [--ratio <scale_ratio>] [--maxx <max_width>] [--maxy <max_heigh>] [--minx <max_width>] [--miny
       <max_heigh>] [--filter <filter-name>]

DESCRIPTION

       Resize all frames and all channels in the stream. Note that resampling is done on each channel as it is - for color  images  resampling	is
       usually done in linear (not gamma corrected) XYZ color space.

OPTIONS

       --x <new_width>, -x <new_width>

	      New x resolution in pixels.

       --y <new_height>, -y <new_height>

	      New y resolution in pixels.

       --ratio <scale_ratio>, -r <scale_ratio>

	      Resize  both  width  and height using the given ratio. Ratio equal 1 is the original size, lower than 1 makes the frames smaller and
	      greater than 1, enlarges the frames.

       --minx <max_width>, --miny <max_heigh>

	      Make sure that the resulting image has at least <min_width> width and/or <min_height> height. Cannot be used in combination with -x,
	      -y and --ratio.

       --maxx <max_width>, --maxy <max_heigh>

	      Make  sure that the resulting image has at most <max_width> width and/or <max_height> height. Cannot be used in combination with -x,
	      -y and --ratio.

       --filter <filter-name>, -f <filter-name>

	      Use filter <filter-name> for upsampling (on downsampling, box filter is always used). Available filters:

	      BOX Box filter. This is the fastest and the filter, but it also causes visible aliasing artifacts.

	      LINEAR (deafult) Bi-linear filter.

	      MITCHELL Mitchell filter. From Mitchell and Netravali, Reconstruction Filters in Computer Graphics,In Computer Graphics, vol. 22 (4)
	      1988. Since the filter contains negative parts, it may cause halo artifacts and it may result in negative values for HDR images.

EXAMPLES

       pfsin memorial.hdr | pfssize -r 0.25 | pfsout memorial_small.hdr

	      Lower the resolution of memorial.hdr four times.

SEE ALSO

       pfsin(1) pfsout(1)

BUGS

       Please report bugs and comments to Rafal Mantiuk <mantiuk@mpi-sb.mpg.de>.

																	pfssize(1)