JustSystems Ichitaro JSGCI.DLL buffer overflow
| justsystems-jsgci-bo (39025) |  High Risk |
Description:
JustSystems Ichitaro is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the JSGCI.DLL library when processing malicious documents. By persuading a victim to open a specially-crafted document, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
Platforms Affected:
- JustSystems, Ichitaro 2005
- JustSystems, Ichitaro 2006
- JustSystems, Ichitaro 2007
Remedy:
Apply the appropriate patch for your system, available for users from the JUSTSYSTEMS Web site. See References.
Consequences:
Gain Access
References:
- JUSTSYSTEMS Web site, Ichitaro security renewal module at http://www.justsystems.com/jp/info/pd7004.html. (Web site is inJapanese)
- Symantec Web site, Trojan.Tarodrop.F at http://www.symantec.com/security_response/writeup.jsp?docid=2007-121308-3953-99&tabid=1.
- BID-26846: JustSystems Ichitaro JSGCI.DLL Unspecified Stack Buffer Overflow Vulnerability
- CVE-2007-6436: Stack-based buffer overflow in JSGCI.DLL in JustSystems Ichitaro 2005, 2006, and 2007 allows user-assisted remote attackers to execute arbitrary code via a crafted document, as actively exploited in December 2007 by the Tarodrop.F trojan. NOTE: some of these details are obtained from third party information.
- SA27992: JustSystems Ichitaro Document Processing Buffer Overflow
- VUPEN/ADV-2007-4213: JustSystems Ichitaro JSGCI.DLL Library Buffer Overflow Vulnerability
Reported:
Dec 13, 2007
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