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Category:   Application (E-mail Server)  >   Cyrus IMAP Server Vendors:   Carnegie Mellon University
(Apple Issues Fix for OS X) Cyrus IMAP Server Memory Errors May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1013505
SecurityTracker URL:  http://securitytracker.com/id/1013505
CVE Reference:   CVE-2004-1011, CVE-2004-1012, CVE-2004-1013   (Links to External Site)
Date:  Mar 22 2005
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.2.8 and prior versions
Description:   Several vulnerabilities were reported in the Cyrus IMAP server. A remote user can execute arbitrary code on the target system.

Stefan Esser of e-matters GmbH reported a variety of bugs. A remote user can trigger a stack overflow in the PROXY and LOGIN commands when the imapmagicplus is enabled on the target server [CVE: CVE-2004-1011]. The username value is not properly validated. Versions 2.2.4 - 2.2.8 are affected.

It is also reported that a remote authenticated user can trigger a memory corruption error in the PARTIAL command [CVE: CVE-2004-1012], exploitable in versions 2.2.6 and prior versions. A remote authenticated user can execute arbitrary code.

It is also reported that a remtoe authenticated user can trigger a memory corruption error in the processing of the FETCH command [CVE: CVE-2004-1013] to execute arbitrary code.

In versions 2.2.7 and 2.2.8, it is also reported that a flaw in processing the MULTIAPPENDS command may cause uninitialized memory to be freed, which may lead to arbitrary code execution.

The vendor was notified on November 6, 2004.

The original advisory is available at:

http://security.e-matters.de/advisories/152004.html

Impact:   A remote user can execute arbitrary code on the target system with the privileges of the imapd process.
Solution:   Apple has issued a fix as part of Apple Security Update 2005-003, described at:

http://docs.info.apple.com/article.html?artnum=301061

Vendor URL:  asg.web.cmu.edu/cyrus/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  UNIX (macOS/OS X)
Underlying OS Comments:  10.3.8

Message History:   This archive entry is a follow-up to the message listed below.
Nov 23 2004 Cyrus IMAP Server Memory Errors May Let Remote Users Execute Arbitrary Code



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