JustSystems Ichitaro Memory Management Program Remote Heap Buffer Overflow Vulnerability

ID SMNTC-48283
Type symantec
Reporter Symantec Security Response
Modified 2011-06-16T00:00:00



JustSystems Ichitaro is prone to a remote buffer-overflow vulnerability. Attackers can exploit this issue by enticing an unsuspecting user to open a specially crafted file. Successful exploits can allow attackers to execute arbitrary code with the privileges of the user running the application. Failed exploit attempts will result in a denial-of-service condition.

Technologies Affected

  • JustSystems Ichitaro 2005
  • JustSystems Ichitaro 2006
  • JustSystems Ichitaro 2006 Government
  • JustSystems Ichitaro 2007
  • JustSystems Ichitaro 2007 Government
  • JustSystems Ichitaro 2008
  • JustSystems Ichitaro 2008 Government
  • JustSystems Ichitaro 2009
  • JustSystems Ichitaro 2009 Government
  • JustSystems Ichitaro 2009 Trial
  • JustSystems Ichitaro 2010
  • JustSystems Ichitaro 2011


Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of suspicious or anomalous activity. This may help detect malicious actions that an attacker may take after successfully exploiting vulnerabilities in applications. Review all applicable logs regularly.

Do not accept or execute files from untrusted or unknown sources.
To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.

Do not follow links provided by unknown or untrusted sources.
Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.

Implement multiple redundant layers of security.
Since this issue may be leveraged to execute code, we recommend memory-protection schemes, such as nonexecutable stack/heap configurations and randomly mapped memory segments. This tactic may complicate exploits of memory-corruption vulnerabilities.

Vendor updates are available. Please see the references for more information.