Multiple Cybozu products vulnerable to buffer overflow


Multiple products provided by Cybozu, Inc. contain a buffer overflow vulnerability (CWE-119).

Masaaki Chida of GREE, Inc. reported this vulnerability to the developer.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

Base Metrics: 9.0 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: Complete
  • Integrity Impact: Complete
  • Availability Impact: Complete

Affected Products

Cybozu, Inc.
  • Cybozu Office 10.0.2 and earlier
  • Cybozu Dezie 8.1.0 and earlier
  • Cybozu Mailwise 5.1.3 and earlier


A remote attacker may cause a denial-of-service (DoS) or execute arbitrary code.

[Update the Software]
Update to the latest version according to the information provided by the developer.
Vendor Information

Cybozu, Inc.
CWE (What is CWE?)

  1. Buffer Errors(CWE-119) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2014-5314

  1. JVN : JVN#14691234
  2. National Vulnerability Database (NVD) : CVE-2014-5314
  3. IPA SECURITY ALERTS : Security Alert for Multiple Cybozu products vulnerable to buffer overflow (JVN#14691234) (in Japanese)
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