Heap-based buffer overflow in Ichitaro - CVE-2017-2790

 

Heap-based buffer overflow in Ichitaro - CVE-2017-2790

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


Vulnerability identifier: #VU5905
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-2017-2790
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 Microsoft Excel’s .xls files. A remote unauthenticated attacker can create a specially crafted .xls file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

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


How to mitigate CVE-2017-2790

Install update from vendor's website.

Sources