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ImageMagick Utilities Image Filename Handling Two Vulnerabilities
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Secunia Advisory:
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SA18261
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Release Date:
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2005-12-30
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Last Update:
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2006-05-26
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Popularity:
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11,978 views
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | ImageMagick 6.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Two vulnerabilities have been discovered in ImageMagick, which potentially can be exploited by malicious people to compromise a user's system.
1) An error exists in the delegate code used by various ImageMagick utilities (e.g. display, identify) when handling an image filename. This can be exploited to execute arbitrary commands when an image file with a filename containing shell command is opened either via the command line or from the file open dialog box.
Successful exploitation requires that the user is e.g. tricked into downloading and saving an image file with a specially crafted filename and opening it.
2) A format string error exists when handling filenames received via command line arguments. This can be exploited by passing a specially crafted output filename containing format specifiers (e.g. file%d%n%n.gif) to the "convert" utility.
The vulnerabilities have been confirmed in version 6.2.5 compiled from source (with default options). Other versions may also be affected.
Note: It has also been reported that an error in the display command, when handling command line arguments containing wildcards, can cause a heap-based buffer overflow when the wildcards are expanded to several files.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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