Security Bulletin: Trend Micro Maximum Security 2017 Regex Matching Use-After-Free Remote Code Execution Vulnerability

LAST UPDATED: FEB 18, 2018

Release Date: February 18, 2018

CVE Vulnerability Identifier: CVE-2016-1669

Platform(s): Windows OS

Summary

Trend Micro has released a hotfix for the Trend Micro Security 2017 (version 11.0) family which resolves a vulnerability, that if exploited could allow an attack to run arbitrary code on a vulnerable system.

Note:The latest version of Trend Micro Security 2019 (version 15) is NOT affected by this vulnerability.

Affected version(s)

Product	Affected version(s)	Platform	Language(s
Premium Security	11.0 and below	Microsoft Windows	English
Maximum Security	11.0 and below	Microsoft Windows	English
Internet Security	11.0 and below	Microsoft Windows	English
Antivirus+ Security	11.0 and below	Microsoft Windows	English

Solution

Trend Micro has two solutions for affected systems:

1. Trend Micro Security 2019 (all versions) is NOT affected by this vulnerability, and customers are highly encouraged to upgrade to the latest version if they have not already done so.
   For the complete instructions on how to upgrade, go to our Knowledge Base article: Upgrading Trend Micro Security to the latest version.
2. For customers who cannot upgrade to the latest version (2019), Trend Micro has released a hotfix for Trend Micro Security 2017 (version 11) to resolve the issue, which must be applied manually:
   

   Product Versions	Solution	Platform
   All Trend Micro Security 2017 products (version 11)	Install Hotfix	Windows OS

Vulnerability Details

This hotfix includes a mitigation for a vulnerability (CVE-2016-1669) that may allow an attacker to execute arbitrary code which could cause certain services to crash and lead to denial-of-service (DOS). As mentioned above, the latest version (2019) of Trend Micro Security is not affected.

Trend Micro has received no reports nor is aware of any actual attacks against the affected products related to this vulnerability at this time.

Mitigating Factors

Exploiting these type of vulnerabilities require that an attacker has access (physical or remote) to a vulnerable machine.

Even though an exploit may require several specific conditions to be met, Trend Micro strongly encourages customers to upgrade to the latest build as soon as possible.

Acknowledgement

Trend Micro would like to thank the following individuals and/or organizations for responsibly disclosing these issues and working with Trend Micro to help protect our customers:

• Anonymous working with Trend Micro's Zero Day Initiative

External References

• CVE-2016-1669
• ZDI-18-216