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Clam AntiVirus OLE2 Unpacker Potential Denial of Service
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Secunia Advisory:
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SA17184
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Release Date:
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2005-10-13
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Last Update:
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2005-11-04
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Popularity:
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9,676 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Clam AntiVirus (clamav) 0.x
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Secunia CVSS-2 Score:
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Available in Secunia business solutions 
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Marcin Owsiany has discovered a vulnerability in Clam AntiVirus, which potentially can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in handling malformed OLE2 files (e.g. DOC files). This can be exploited to crash "clamd" via a specially crafted DOC file that causes "clamd" to call the "ole2_walk_property_tree()" function recursively.
Successful exploitation causes a DoS (e.g. if "clamd" is used by an email gateway), but requires that "clamd" is configured with a large value (e.g. > 10000) for the ArchiveMaxFiles option.
The vulnerability has been confirmed in version 0.87. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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