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Category:   Application (Generic)  >   Citrix XenApp (MetaFrame Presentation Server) Vendors:   Citrix
Citrix Presentation Server IMA Service Bugs Let Remote Users Execute Arbitrary Code and Deny Service
SecurityTracker Alert ID:  1017205
SecurityTracker URL:  http://securitytracker.com/id/1017205
CVE Reference:   CVE-2006-5821   (Links to External Site)
Updated:  Nov 9 2006
Original Entry Date:  Nov 9 2006
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.0 and prior versions
Description:   Two vulnerabilities were reported in Citrix Presentation Server. A remote user can execute arbitrary code on the target system. A remote user can cause denial of service conditions.

A remote user can send specially crafted data to the Independent Management Architecture (IMA) service to trigger a buffer overflow and execute arbitrary code on the target system [CVE-2006-5821].

A remote user can also cause the IMA server process to crash.

The vendor was notified of the buffer overflow vulnerability on June 16, 2006 and the denial of service vulnerability on July 3, 2006.

TippingPoint reported the buffer overflow vulnerability.

Eric Detoisien and iDefense reported the denial of service vulnerability.

The original advisories are available at:

http://www.zerodayinitiative.com/advisories/ZDI-06-038.html
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=441

Impact:   A remote user can execute arbitrary code on the target system.

A remote user can cause denial of service conditions.

Solution:   The vendor has issued the following fixes:

MetaFrame XP 1.0 for Windows 2000 Server:

EN - http://support.citrix.com/article/CTX111115

FR - http://support.citrix.com/article/CTX111116

GE - http://support.citrix.com/article/CTX111117

JA - http://support.citrix.com/article/CTX111120

ES - http://support.citrix.com/article/CTX111119

MetaFrame XP 1.0 for Windows Server 2003:

EN - http://support.citrix.com/article/CTX111134

FR - http://support.citrix.com/article/CTX111136

GE - http://support.citrix.com/article/CTX111132

JA - http://support.citrix.com/article/CTX111131

ES - http://support.citrix.com/article/CTX111135

MetaFrame Presentation Server 3.0 for Windows 2000 Server:

EN - http://support.citrix.com/article/CTX111124

FR - http://support.citrix.com/article/CTX111126

GE - http://support.citrix.com/article/CTX111128

JA - http://support.citrix.com/article/CTX111129

ES - http://support.citrix.com/article/CTX111127

MetaFrame Presentation Server 3.0 for Windows Server 2003:

EN - http://support.citrix.com/article/CTX111142

FR - http://support.citrix.com/article/CTX111141

GE - http://support.citrix.com/article/CTX111140

JA - http://support.citrix.com/article/CTX111138

ES - http://support.citrix.com/article/CTX111139

Citrix Presentation Server 4.0 for Windows 2000 Server:

EN - http://support.citrix.com/article/CTX110938

FR - http://support.citrix.com/article/CTX111450

GE - http://support.citrix.com/article/CTX111451

JA - http://support.citrix.com/article/CTX111453

ES - http://support.citrix.com/article/CTX111452

Citrix Presentation Server 4.0 for Windows Server 2003:

EN - http://support.citrix.com/article/CTX110939

FR - http://support.citrix.com/article/CTX111468

GE - http://support.citrix.com/article/CTX111469

JA - http://support.citrix.com/article/CTX111467

ES - http://support.citrix.com/article/CTX111470

Citrix Presentation Server 4.0 for Windows Server 2003 x64 Editions:

EN - http://support.citrix.com/article/CTX111145

FR - http://support.citrix.com/article/CTX111146

GE - http://support.citrix.com/article/CTX111147

JA - http://support.citrix.com/article/CTX111149

ES - http://support.citrix.com/article/CTX111148

The Citrix advisory is available at:

http://support.citrix.com/article/CTX111186

Vendor URL:  support.citrix.com/article/CTX111186 (Links to External Site)
Cause:   Boundary error, Input validation error
Underlying OS:  Windows (2000), Windows (2003)

Message History:   None.


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