SB2010110401 - Two remote code execution vulnerabilities in JustSystems Ichitaro

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Buffer overflow (CVE-ID: CVE-2010-3915)

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

The vulnerability exists due to boundary error when handling specially crafted office documents. A remote attacker can create a specially crafted document, trick the victim into opening it, cause buffer overflow and execute arbitrary code on vulnerable system.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

2) Improper input validation (CVE-ID: CVE-2010-3916)

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

The vulnerability exists due to unknown error when handling specially crafted office documents. A remote attacker can create a specially crafted document, trick the victim into opening it, cause unspecified error and execute arbitrary code on vulnerable system.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

Remediation

Install update from vendor's website.

References

• http://www.justsystems.com/jp/info/js10003.html
• https://www.symantec.com/connect/blogs/new-ichitaro-vulnerability-confirmed