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Clam AntiVirus clamav-milter Database Update Denial of Service
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Secunia Advisory:
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SA15835
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Release Date:
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2005-06-28
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Last Update:
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2005-06-29
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Popularity:
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9,702 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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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| CVE reference: | CVE-2005-2070
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Description:
Damian Menscher has reported a vulnerability in clamav-milter, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to a design error in ClamAV's Sendmail milter that requires it to wait for all existing connections to terminate and at the same time reject new connections, when it needs to perform a database update. This can be exploited to cause a DoS on clamav-milter by opening a persistent connection to Sendmail when the milter needs to perform an update.
Successful exploitation may cause Sendmail to stop accepting incoming messages, but requires Sendmail to be configured to scan all messages using clamav-milter.
Solution:
Update to version 0.86 or later.
Provided and/or discovered by:
Damian Menscher
Changelog:
2005-06-29: Added CVE reference.
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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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