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Symantec Mail Security Executable Attachment Parsing Denial of Service Advisory Available in Danish  Advisory Available in German 

Secunia Advisory: SA24632  
Release Date: 2007-06-26

Critical:
Less critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

OS:Symantec Mail Security Appliance 5.0.x

Software:Symantec Mail Security for SMTP 5.x

CVE reference:CVE-2007-1792 (Secunia mirror)

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Description:
Secunia Research has discovered two vulnerabilities in Symantec Mail Security, which can be exploited by malicious people to cause a DoS (Denial of Service) on a vulnerable system.

The vulnerabilities are caused due to boundary errors in the SMS Filter Hub service when parsing executable files attached to filtered emails. These can be exploited to cause unhandled access violations by sending a specially crafted executable file attached to an email.

Successful exploitation causes the service to periodically refuse mails and causes the mail queue to backup.

The vulnerabilities are confirmed in Symantec Mail Security for SMTP version 5.0 patch 176 and also reported in the following versions:
* Symantec Mail Security for SMTP (5.0.0 and 5.0.1 versions prior to 5.0.1 patch 181)
* Symantec Mail Security Appliance (5.0.x versions prior to 5.0.0-36)

Solution:
Apply fixes.

Symantec Mail Security for SMTP:
Update to version 5.0.1 and apply patch 181.

Symantec Mail Security Appliance:
Update to version 5.0.0-36 or later.

Provided and/or discovered by:
Dyon Balding, Secunia Research.

Original Advisory:
Symantec:
http://securityresponse.symantec.com/avcenter/security/Content/2007.06.26.html

Secunia Research:
http://secunia.com/secunia_research/2007-48/



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.

6 Related Secunia Security Advisories

1. Symantec Mail Security Attachment Parsing Vulnerabilities
2. Symantec Mail Security Lotus 1-2-3 File Viewer Buffer Overflows
3. Symantec Mail Security Appliance File Parsing Vulnerabilities
4. Symantec Mail Security for SMTP File Parsing Vulnerabilities
5. Symantec Products CAB and RAR Archive Handling Vulnerabilities
6. Symantec Mail Security for SMTP Message Handling Vulnerabilities


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