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Lotus Notes Deleted Mail Recipient Security Issue
Secunia Advisory: SA21096
Release Date: 2006-07-17
Last Update: 2006-07-28
Popularity: 8,235 views

Critical:
Not critical
Impact: Exposure of sensitive information
Where: From remote
Solution Status: Vendor Workaround

Software:IBM Lotus Notes 6.x
IBM Lotus Notes 7.x

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CVE reference:CVE-2006-3778


Description:
A security issue has been reported in Lotus Notes, which may expose potentially sensitive information to certain people.

The problem is caused due to an error in the Lotus Notes mail template. Under very specific circumstances, recipients deleted from the "To", "Cc", and "Bcc" fields may still be shown as recipients of a e-mail messages from/to alternate name users. This may result in these people receiving replies, though they never received the original e-mail, if a recipient of the e-mail message replies to all.

This only occurs when the "Default display name" preference is set to "Display alternate names".

Solution:
The vendor has published guidelines for repairing the template (see the vendor's advisory).

Provided and/or discovered by:
Reported by the vendor.

Changelog:
2006-07-28: Added CVE reference.

Original Advisory:
http://www-1.ibm.com/support/docview.wss?rs=899&uid=swg21240386


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