Published:2014/11/11  Last Updated:2014/11/11

Multiple Cybozu products vulnerable to buffer overflow


Multiple Cybozu products contain a buffer overflow vulnerability.

Products Affected

  • Cybozu Office 10.0.2 and earlier
  • Cybozu Mailwise 5.1.3 and earlier
  • Cybozu Dezie 8.1.0 and earlier


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


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 Status

Vendor Status Last Update Vendor Notes
Cybozu, Inc. Vulnerable 2014/11/11 Cybozu, Inc. website


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2014.11.11 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC) High (H) Medium (M) Low (L) Specialized access conditions or extenuating circumstances do not exist.
Authentication(Au) Multiple (M) Single (S) None (N) The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is total information disclosure, resulting in all system files being revealed.
Integrity Impact(I) None (N) Partial (P) Complete (C) There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.
Availability Impact(A) None (N) Partial (P) Complete (C) There is a total shutdown of the affected resource.

Base Score:9.0


Masaaki Chida of GREE, Inc. reported this vulnerability to the developer.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2014-5314
JVN iPedia JVNDB-2014-000130