Published:2008/01/07  Last Updated:2008/07/17

Multiple JustSystems products vulnerable to buffer overflow


Multiple JustSystems products are vulnerable to buffer overflow.

Products Affected

Multiple products are affected by this vulnerability.
For details, see the information provided by JustSystems.


Multiple JustSystems products contain a vulnerability which allows a remote attacker to cause buffer overflow when a user opens or views a specially crafted .jtd file.


If a user opens a specially crafted .jtd file or views a web page containing a specially crafted .jtd file, arbitrary code can be executed with the privilege of the user.


Vendor Status

Vendor Status Last Update Vendor Notes
JustSystems Corporation Vulnerable 2008/01/07


  1. IPA
    Security Alert for Vulnerability in Multiple JustSystems Products

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2008.01.07

Measures Conditions Severity
Access Required Routed - can be attacked over the Internet using packets
  • High
Authentication None - anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required Simple - the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Medium
Exploit Complexity Low-Medium - some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Medium-High

Description of each analysis measures


Yuji Ukai of Fourteenforty Research Institute, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendors under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
JVN iPedia JVNDB-2008-000001

Update History

JVN English site opened and the first English advisory of this issue was published.
Information under the section "References" was added.