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ImageMagick is an image display and manipulation tool for the X Window
System that can read and write multiple image formats.
It was found that ImageMagick utilities tried to load ImageMagick
configuration files from the current working directory. If a user ran
an ImageMagick utility in an attacker-controlled directory containing
a specially crafted ImageMagick configuration file, it could cause the
utility to execute arbitrary code. (CVE-2010-4167)
This update also fixes the following bugs :
- Previously, the 'identify -verbose' command failed with
an assertion if there was no image information
available. An upstream patch has been applied, so that
GetImageOption() is now called correctly. Now, the
'identify -verbose' command works correctly even if no
image information is available.
- Previously, an incorrect use of the semaphore data type
led to a deadlock. As a consequence, the ImageMagick
utility could become unresponsive when converting JPEG
files to PDF (Portable Document Format) files. A patch
has been applied to address the deadlock issue, and JPEG
files can now be properly converted to PDF files.
- Previously, running the 'convert' command with the
'-color' option failed with a memory allocation error.
The source code has been modified to fix problems with
memory allocation. Now, using the 'convert' command with
the '-color' option works correctly.
- Previously, ImageMagick could become unresponsive when
using the 'display' command on damaged GIF files. The
source code has been revised to prevent the issue.
ImageMagick now produces an error message in the
described scenario. A file selector is now opened so the
user can choose another image to display.
- Prior to this update, the 'convert' command did not
handle rotated PDF files correctly. As a consequence,
the output was rendered as a portrait with the content
being cropped. With this update, the PDF render geometry
is modified, and the output produced by the 'convert'
command is properly rendered as a landscape.
All users of ImageMagick are advised to upgrade to these updated
packages, which contain backported patches to correct these issues.
All running instances of ImageMagick must be restarted for this update
to take effect.
See also :
Update the affected packages.
Risk factor :
Medium / CVSS Base Score : 6.9