Quantum Secular Labs / Blog / Advisories

CVE-2003-0347: Microsoft Visual Basic: Buffer overflow

CVE-2003-0347 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Microsoft Visual Basic, along with 3 other products in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Heap-based buffer overflow in VBE.DLL and VBE6.DLL of Microsoft Visual Basic for Applications (VBA) SDK 5.0 through 6.3 allows remote attackers to execute arbitrary code via a document with a long ID parameter.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access vector: Network. Exploitable remotely over the network.
  • Access complexity: Low. No special conditions are required.
  • Authentication: None. No authentication is needed.
  • Confidentiality impact: Complete. Total information disclosure.
  • Integrity impact: Complete. Total loss of integrity.
  • Availability impact: Complete. Total shutdown of the component.

Affected products

  • Microsoft Visual Basic: 5.0; 6.2; 6.3
  • Microsoft Office: 2000; 2000 sp2; 2000 sp3; xp; xp sp1; xp sp2
  • Microsoft Project: 2000; 2002
  • Microsoft Visio: 2002

References