A vulnerability has been reported in various JustSystems Ichitaro products, which can be exploited by malicious people to potentially compromise a user's system.

The vulnerability is caused due to a boundary error in the processing of RTF files and can be exploited to cause a buffer overflow.

Successful exploitation may allow execution of arbitrary code.

Solution
Update to a fixed version. Please see vendor's advisory for details.

Provided and/or discovered by
Fourteenforty, reported via JPCERT.

Changelog
Further details available to Secunia VIM customers

Original Advisory
JustSystems:
http://www.justsystems.com/jp/info/js09002.html

Fourteenforty:
http://www.fourteenforty.jp/research/advisory.cgi?FFRRA-20090407

JVN:
http://jvndb.jvn.jp/en/contents/2009/JVNDB-2009-000018.html
http://jvn.jp/en/jp/JVN33846134/index.html

Deep Links
Links available to Secunia VIM customers