Heap-based buffer overflow in Ichitaro - CVE-2017-2789

 

Heap-based buffer overflow in Ichitaro - CVE-2017-2789

Published: February 28, 2017 / Updated: March 1, 2017


Vulnerability identifier: #VU5904
CSH Severity: High
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:U/U:Amber
CVE-ID: CVE-2017-2789
CWE-ID: CWE-122
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 vulnerability exists due to boundary error when processing Figure stream from a .jtd document. A remote unauthenticated attacker can create a specially crafted .jtd document, trick the victim into opening it, cause heap-based buffer overflow and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2017-2789

Install update from vendor's website.

Sources