VULNERABILITIES / FIXES - April 24, 2012
by Carol~ - 4/24/12 7:12 AM
JustSystems Multiple Products Two Vulnerabilities
Release Date : 2012-04-24
Criticality level : Highly critical
Impact : System access
Where : From remote
Solution Status : Vendor Patch
Software: Ichitaro 2006
Ichitaro Viewer 2009 19.x
Ichitaro Viewer 2010 20.x
JUST School 2009
JUST School 2010
Two vulnerabilities have been reported in multiple products, which can be exploited by malicious people to compromise a user's system.
1) An integer overflow error in JSJPEG.DLL when parsing JPEG images embedded in Ichitaro documents can be exploited to cause a heap-based buffer overflow via an Ichitaro document containing a JPEG image with specially crafted dimensions
2) The application loads unspecified libraries in an insecure manner. This can be exploited to load arbitrary libraries by tricking a user into opening a certain file type located on a remote WebDAV or SMB share.
Apply patches (please see the vendor's advisory for details).
Provided and/or discovered by:
1) Tielei Wang, Georgia Tech Information Security Center via Secunia.
2) IPA credits Naoto Katsumi, LAC Co.