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Samba Wildcard Filename Matching Denial of Service Vulnerability
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Secunia Advisory:
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SA13139
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Release Date:
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2004-11-09
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Popularity:
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10,302 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 local network
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Solution Status:
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Vendor Patch
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| Software: | Samba 3.x
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| CVE reference: | CVE-2004-0930
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Description:
Karol Wiesek has reported a vulnerability in Samba, which can be exploited by malicious users to cause a DoS (Denial of Service).
The vulnerability is caused due to an input validation error within the "ms_fnmatch()" function when matching filenames containing wildcard characters. This can be exploited via multiple specially crafted commands to consume a large amount of CPU resources.
Successful exploitation may cause the server to stop responding entirely.
The vulnerability affects version 3.0.7 and prior.
Solution:
Apply patch for Samba 3.0.7:
http://us4.samba.org/samba/ftp/patches/security/samba-3.0.7-CAN-2004-0930.patch
Provided and/or discovered by:
Karol Wiesek
Original Advisory:
Samba:
http://us1.samba.org/samba/security/CAN-2004-0930.html
iDEFENSE:
http://www.idefense.com/application/poi/display?id=156&type=vulnerabilities
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About this Secunia Advisory
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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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