Ichitaro series vulnerable to arbitrary code execution


The "Ichitaro" series word processing software, from JustSystems Corporation contains a vulnerability that may allow arbitrary code execution.
This vulnerability differs from other issues that were previously published on JVN.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 9.3 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Complete
  • Integrity Impact: Complete
  • Availability Impact: Complete
Affected Products

JustSystems Corporation
  • Just School
  • Ichitaro
  • Ichitaro Pro
  • Ichitaro Government
  • Ichitaro Viewer
  • Ichitaro Portable

For more detailed version information, refer to the developer's website.

When a user opens a specially crafted file, an arbitrary code may be executed.

[Update the software]
Apply the appropriate update module according to the information provided by the developer.
Vendor Information

JustSystems Corporation
CWE (What is CWE?)

  1. No Mapping(CWE-noinfo) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2013-3644

  1. JVN : JVN#98712361
  2. National Vulnerability Database (NVD) : CVE-2013-3644
  3. IPA SECURITY ALERTS : Security Alert for Vulnerability in the Ichitaro Series (in Japanese)
Revision History

  • [2013/06/18]
      Web page was published
      References : Content was added