Matteo Memelli has discovered a vulnerability in MDaemon, which can be exploited by malicious users to compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the IMAP server when processing the "FETCH" command. This can be exploited to cause a stack-based buffer overflow via a specially crafted "FETCH" command containing an overly long section specification in a "BODY" data item.
Successful exploitation allows execution of arbitrary code, but requires valid user credentials.
The vulnerability is confirmed in version 9.6.4. Other versions may also be affected.
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Subject: MDaemon IMAP Server "FETCH" Command Buffer Overflow
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