Technical Description

Multiple vulnerabilities have been identified in MailEnable Professional and Enterprise, which could be exploited by attackers to cause a denial of service or take complete control of an affected system.

The first issue is caused by buffer overflow errors in the IMAP service (MEIMAPS.exe) when processing overly long arguments passed to the "FETCH", "EXAMINE" and "UNSUBSCRIBE" commands, which could be exploited by authenticated attackers to crash an affected application or execute arbitrary code.

The second vulnerability is caused by NULL pointer dereference errors in the IMAP service (MEIMAPS.exe) when processing the "SEARCH" and "APPEND" commands without any argument, which could be exploited by unauthenticated attackers to crash an affected application, creating a denial of service condition.

Affected Products

MailEnable Professional version 3.13 and prior
MailEnable Enterprise version 3.13 and prior

Solution

Apply patch :
http://www.mailenable.com/hotfix/ME-10040.EXE

References

http://www.vupen.com/english/advisories/2008/0799
http://aluigi.altervista.org/adv/maildisable-adv.txt

Credits

Vulnerabilities reported by Luigi Auriemma.

ChangeLog

2008-03-10 : Initial release
2008-03-14 : Updated Solution

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