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Ipswitch IMail Server IMAP and SMTP Service Two Vulnerabilities Advisory Available in Danish 

Secunia Advisory: SA17863  
Release Date: 2005-12-07

Critical:
Highly critical
Impact: DoS
System access
Where: From remote
Solution Status: Vendor Patch

Software:IMail Server 8.x
Ipswitch Collaboration Suite (ICS) 2.x

CVE reference:CVE-2005-2923 (Secunia mirror)
CVE-2005-2931 (Secunia mirror)

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Description:
Two vulnerabilities have been reported in IMail Server, which can be exploited by malicious users to cause a DoS (Denial of Service) and to compromise a vulnerable system.

1) A format string error exists in the SMTPD32 service when parsing arguments supplied to the "expn", "mail", "mail from", and "rcpt to" commands. This can be exploited to execute arbitrary code via specially crafted arguments sent to the affected commands.

2) An error exists in the IMAP4D32 service when handling user supplied arguments passed to the IMAP LIST command. This can be exploited by a logon user to cause a memory dereferencing error, which crashes the IMAP service by supplying an argument of approximately 8000 bytes to the command.

The vulnerabilities have been reported in IMail Server version 8.20. Other versions prior to 8.22 may also be affected.

Note: IMail Server is included as part of the Ipswitch Collaboration Suite.

Solution:
Update to the fixed versions.

IMail Server 8.20:
Update to version 8.22.
http://www.ipswitch.com/support/imail/releases/imail_professional/im822.asp

Ipswitch Collaboration Suite 2.0:
Update to version 2.02.
http://www.ipswitch.com/support/ics/updates/ics202.asp

Provided and/or discovered by:
1) Nico
2) Sebastian Apelt

Original Advisory:
http://www.idefense.com/application/poi/display?id=346&type=vulnerabilities
http://www.idefense.com/application/poi/display?id=347&type=vulnerabilities



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

8 Related Secunia Security Advisories

1. Ipswitch Instant Messaging IMServer Denial of Service
2. Ipswitch Instant Messaging Server Denial of Service
3. Ipswitch IMail Server SMTP Service Buffer Overflow Vulnerability
4. IMail Server Multiple Vulnerabilities
5. Ipswitch Collaboration Suite IMAP EXAMINE Buffer Overflow
6. IMail IMAP Service DELETE Command Buffer Overflow Vulnerability
7. IMail Multiple Denial of Service Vulnerabilities
8. IMail Server LDAP Daemon Buffer Overflow Vulnerability


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Ideas, suggestions, and other feedback are most welcome.








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