Microsoft Jet Database Engine Word file buffer overflow

microsoft-jet-msjet40-bo (41380) The risk level is classified as HighHigh Risk

Description:

Microsoft Jet Database Engine (msjet40.dll) is vulnerable to a stack-based buffer overflow, caused by improper bounds checking when parsing a Word file. By persuading a victim to open a specially-crafted Word file, a remote attacker could cause the victim's application to crash or possibly execute arbitrary code on the victim's system with the privileges of the victim. An attacker could exploit this vulnerability by sending the malicious file as an email attachment or by hosting it on a Web site.

An attacker could also exploit this vulnerability by persuading a victim to open a specially-crafted MDB file or an MDB file embedded in a Word document. Refer to SecChkID 38499. See References.

*CVSS:

Base Score: 9.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 6.9
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS08-028. See References.

References:

  • HPSBST02336 SSRT080071 rev.1: Storage Management Appliance (SMA), Microsoft Patch Applicability MS08-026 to MS08-029.
  • IBM Internet Security Systems X-Force Database: Microsoft Jet Database Engine MDB file buffer overflow.
  • Microsoft Security Advisory (950627): Vulnerability in Microsoft Jet Database Engine (Jet) Could Allow Remote Code Execution.
  • Microsoft Security Bulletin MS08-028: Vulnerability in Microsoft Jet Database Engine (Jet) Could Allow Remote Code Execution (950749).
  • BID-28087: Microsoft Jet Database Engine MDB File Parsing Unspecified Remote Vulnerability
  • CVE-2008-1092: Buffer overflow in msjet40.dll before 4.0.9505.0 in Microsoft Jet Database Engine allows remote attackers to execute arbitrary code via a crafted Word file, as exploited in the wild in March 2008. NOTE: as of 20080513, Microsoft has stated that this is the same issue as CVE-2007-6026.
  • SECTRACK ID: 1019686: Microsoft Jet Database Buffer Overflow in 'msjet40.dll' Lets Remote Users Execute Arbitrary Code via Word Documents
  • US-CERT VU#936529: Microsoft Jet Engine stack buffer overflow

Platforms Affected:

  • Microsoft Jet 4.0
  • Microsoft Word 2000
  • Microsoft Word 2003
  • Microsoft Word 2007

Reported:

Mar 21, 2008

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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.

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