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SpamAssassin Long Message Header Denial of Service

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Release Date:  2005-11-10    Views:  16,013

Secunia Advisory SA17386

Where:

From remote

Impact:

DoS

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


A vulnerability has been reported in SpamAssassin, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to the use of an inefficient regular expression in "/SpamAssassin/Message.pm" to parse email headers. This can cause perl to crash when it runs out of stack space and can be exploited via a malicious email that contains a large number of recipients.

The vulnerability has been reported in version 3.0.4. Prior versions may also be affected.


Solution:
Update to version 3.1.0.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Irina and Mark Martinec.

Original Advisory:
http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4570

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: SpamAssassin Long Message Header Denial of Service

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