Microsoft Distributed Transaction Coordinator Two Vulnerabilities - Secunia Advisories - Vulnerability Intelligence

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Microsoft Distributed Transaction Coordinator Two Vulnerabilities
Secunia Advisory:	SA20000	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2006-05-09
Last Update:	2006-05-11
Popularity:	34,476 views

Critical:	Moderately critical
Impact:	DoS System access
Where:	From local network
Solution Status:	Vendor Patch

OS:	Microsoft Windows 2000 Advanced Server Microsoft Windows 2000 Datacenter Server Microsoft Windows 2000 Professional Microsoft Windows 2000 Server Microsoft Windows NT 4.0 Server Microsoft Windows NT 4.0 Server, Terminal Server Edition Microsoft Windows Server 2003 Datacenter Edition Microsoft Windows Server 2003 Enterprise Edition Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Web Edition Microsoft Windows XP Home Edition Microsoft Windows XP Professional

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2006-0034 CVE-2006-1184

Description: Two vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system. 1) An out-of-bounds memory access error in the MSDTC (Microsoft Distributed Transaction Coordinator) can be exploited via a specially crafted BuildContextW request with a large UuidString or GuidIn string. Successful exploitation causes the MSDTC component and dependent services to stop responding. This vulnerability is related to vulnerability #1 in: SA17161 2) A boundary error in the "CRpcIoManagerServer::BuildContext()" function in msdtcprx.dll within MSDTC can be exploited to cause a heap-based buffer overflow. According to the vendor, this causes the MSDTC component and dependent services to stop responding when receiving a specially crafted network message. According to eEye Digital Security, this vulnerability can be exploited to execute arbitrary code on a vulnerable system. Solution: Apply patches. Microsoft Windows 2000 SP4: http://www.microsoft.com/downloads/de...=8B98F380-0E5C-4B80-9710-95E1B35AFD83 Microsoft Windows XP SP1 / SP2: http://www.microsoft.com/downloads/de...=D80B43B2-727B-46B6-82D1-F2CBD916FE32 Microsoft Windows Server 2003: http://www.microsoft.com/downloads/de...=E70515C7-8924-46DA-8573-457957EEA0D7 Microsoft Windows Server 2003 for Itanium-based systems: http://www.microsoft.com/downloads/de...=7BD81335-79EA-46CE-8D3C-0AA91EEFFF02 Provided and/or discovered by: 1) Derek Soeder of eEye Digital Security and Kai Zhang of VenusTech. 2) Derek Soeder of eEye Digital Security and Chen Xiaobo of McAfee Avert Labs. Changelog: 2006-05-09: Added additional information from eEye Digital Security. 2006-05-11: Added additional information from McAfee. Original Advisory: MS06-018 (KB913580): http://www.microsoft.com/technet/security/Bulletin/MS06-018.mspx eEye Digital Security: http://www.eeye.com/html/research/advisories/AD20060509a.html http://www.eeye.com/html/research/advisories/AD20060509b.html Other References: SA17161: http://secunia.com/advisories/17161/

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