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Symantec Brightmail AntiSpam / Mail Security Appliance Denial of Service
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Secunia Advisory:
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SA16733
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Release Date:
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2005-09-07
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Last Update:
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2005-09-22
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Popularity:
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9,710 views
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Critical:
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Moderately 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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| OS: | Symantec Mail Security Appliance 4.1.x
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| Software: | Symantec Brightmail AntiSpam 6.x
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Description:
Two vulnerabilities have been reported in Brightmail and Mail Security 8200 Appliance, which potentially can be exploited by malicious people to cause a DoS (Denial of Service).
1) An error in the antivirus when scanning or cleaning certain messages (e.g. containing deeply nested zip files) may be exploited to cause the antivirus to process the messages for an extended period of time.
2) An error in the decomposer when processing messages containing winmail.dat objects embedded in a MIME file may be exploited to crash the decomposer.
The vulnerabilities have been reported in the following versions:
* Symantec Brightmail AntiSpam 6.0.1 and 6.0.2
* Symantec Mail Security 8200 Series Appliance
Brightmail AntiSpam on Win32 platforms are not affected.
Solution:
Apply patches.
Symantec Brightmail AntiSpam 6.0.1 and 6.0.2:
Apply patch 157.
ftp://ftp.symantec.com/public/english...ucts/sba/sba_60x/updates/patch157.zip
Symantec Mail Security 8200 Series Appliance:
Update to the latest version (build 4.1.0-58) via automatic update.
Provided and/or discovered by:
Reported by vendor.
Changelog:
2005-09-22: New information on affected versions. Updated "Description" and "Solution" sections.
Original Advisory:
ftp://ftp.symantec.com/public/english...ba_60x/updates/release_notes_p157.txt
http://securityresponse.symantec.com/avcenter/security/Content/2005.09.21a.html
http://securityresponse.symantec.com/avcenter/security/Content/2005.09.21b.html
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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.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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