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Highly critical

ZoneAlarm SMTP Processing Buffer Overflow Vulnerability

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Release Date:  2004-02-19    Last Update:  2004-02-24    Views:  20,218

Secunia Advisory SA10921

Where:

From remote

Impact:

Privilege escalation, System access

Solution Status:

Vendor Patch

CVE Reference(s):

No CVE references.

Description


eEye has discovered a vulnerability in ZoneAlarm and Integrity client, allowing users to escalate their privileges and potentially also allowing malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the SMTP processing system when handling outgoing email messages. This can be exploited to cause a buffer overflow by sending an email with an overly long value in a "RCPT TO:" header.

Successful exploitation allows execution of arbitrary code with SYSTEM privileges and can be remotely exploited without any user action if the SMTP service is running on a protected system.

The vulnerability has been reported to affect version 4.x. Prior versions are not vulnerable.

NOTE: According to the vendor, only a small percentage of users are affected, since this is an untypical setup as servers shouldn't be protected with the client security products.


Solution:
Update to the following versions:

Further details available to Secunia VIM customers

Provided and/or discovered by:
Riley Hassell, eEye Digital Security.

Original Advisory:
Zone Labs:
http://download.zonelabs.com/bin/free/securityAlert/8.html

eEye Digital Security:
http://www.eeye.com/html/Research/Advisories/AD20040219.html

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: ZoneAlarm SMTP Processing Buffer Overflow Vulnerability

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