Memory corruption in Ichitaro - CVE-2009-4737

 

Memory corruption in Ichitaro - CVE-2009-4737

Published: December 23, 2016 / Updated: March 7, 2017


Vulnerability identifier: #VU2796
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2009-4737
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: JustSystems Corporation
Affected software:
Ichitaro

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error when handling malformed files. A remote attacker can create a specially crafted RTF file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the system with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

How to mitigate CVE-2009-4737

Install update from vendor's website:
http://www.justsystems.com/jp/info/js09001.html

Sources