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Symantec Mail Security for SMTP Response Handling Denial of Service

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Release Date:  2009-01-07    Views:  6,055

Secunia Advisory SA33202

Where:

From remote

Impact:

DoS

Solution Status:

Vendor Patch

CVE Reference(s):

No CVE references.

Description


A vulnerability has been discovered in Symantec Mail Security for SMTP, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due an error when processing failed mail deliveries. This can be exploited by causing a mail to be delivered to a malicious mail server, which returns a specially crafted response.

Successful exploitation repeatedly crashes the Filter Hub service and prevents further processing of mails.

The vulnerability is confirmed in version 5.0.1 with Patch 189 installed. Other versions may also be affected.


Solution:
Apply Patch 200 for version 5.0.1:

Further details available to Secunia VIM customers

Provided and/or discovered by:
Silently fixed by the vendor.

Additional information provided by Secunia Research.

Original Advisory:
Symantec:
ftp://ftp.symantec.com/public/english_us_canada/products/symantec_mail_security/5.0.1_smtp/updates/RELEASE_NOTES.p200.txt

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Symantec Mail Security for SMTP Response Handling Denial of Service

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