MSDTC NdrAllocate() invalid memory access denial of service
| msdtc-network-message-dos (25559) |  Medium Risk |
Description:
The Microsoft Distributed Transaction Service Coordinator (MSDTC) installed on Microsoft Windows is vulnerable to a denial of service attack, caused by a buffer overflow in the MSDTC NdrAllocate() function. By sending a specially-crafted network message to the system, a remote attacker could cause the MSDTC service to stop responding.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 3.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS06-018. See References.
References:
- eEye Digital Security Advisory AD20060509b: Microsoft Distributed Transaction Coordinator Denial of Service.
- Full-Disclosure Mailing List, Wed May 10 2006 - 19:01:09 CDT: Microsoft MSDTC NdrAllocate Validation Vulnerability.
- Microsoft Security Bulletin MS06-018: Vulnerability in Microsoft Distributed Transaction Coordinator Could Lead to Denial of Service (913580).
- ASA-2006-099: Windows Security Updates for May 2006 - (MS06-018 - MS06-020)
- BID-17906: Microsoft Windows MSDTC Invalid Memory Access Denial Of Service Vulnerability
- CVE-2006-0034: Heap-based buffer overflow in the CRpcIoManagerServer::BuildContext function in msdtcprx.dll for Microsoft Distributed Transaction Coordinator (MSDTC) for Windows NT 4.0 and Windows 2000 SP2 and SP3 allows remote attackers to execute arbitrary code via a long fifth argument to the BuildContextW or BuildContext opcode, which triggers a bug in the NdrAllocate function, aka the MSDTC Invalid Memory Access Vulnerability.
- OSVDB ID: 25335: Microsoft Windows Distributed Transaction Coordinator (DTC) CRpcIoManagerServer::BuildContext Function Remote Overflow
- SA20000: Microsoft Distributed Transaction Coordinator Two Vulnerabilities
- SECTRACK ID: 1016047: Microsoft Distributed Transaction Coordinator Bugs Let Remote Users Deny Service
- VUPEN/ADV-2006-1742: Microsoft Windows Distributed Transaction Coordinator Multiple Vulnerabilities (MS06-018)
Platforms Affected:
- Microsoft Windows 2000 SP4
- Microsoft Windows 2003
- Microsoft Windows 2003 Server SP1 Itanium
- Microsoft Windows 2003 Server Itanium
- Microsoft Windows XP SP2
- Microsoft Windows XP SP1
Reported:
May 09, 2006
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.