Security Bulletin: Trend Micro Antivirus for Mac (Consumer) Privilege Escalation Vulnerabilities

LAST UPDATED: OCT 19, 2018

Release Date: October 19, 2018

CVE Vulnerability Identifiers: CVE-2018-15366, CVE-2018-15367, CVE-2018-18327, CVE-2018-18328, CVE-2018-18329

Platform: macOS

CVSS 3.0 Scores: 6.9

Severity Ratings: Medium

Summary

Trend Micro has released fixes for the Trend Micro Antivirus for Mac family of consumer products which resolve vulnerabilities that could allow an attacker to escalate privileges on a vulnerable system that they otherwise would not have had access to.

Affected versions

Product	Affected Versions	Platform	Language(s)
Antivirus for Mac 2019	9.0.1356 and below	macOS	English
Antivirus for Mac 2018	8.0.3082 and below	macOS	English
Antivirus for Mac 2017	7.1.1124 and below	macOS	English

Solution

Product	Updated Build	Platform	Language(s)
All Versions Above	Any version above 7.0	macOS	English

Trend Micro has addressed these vulnerabilities via a patch that is available now through the product’s automatic ActiveUpdate feature for all versions of Trend Micro Antivirus for Mac listed above. Customers who have at least version 7.0 will already have the necessary patch applied with the latest update.

Vulnerability Details

This patch includes mitigations for the following vulnerabilities:

• CVE-2018-15366: Use-After-Free Privilege Escalation Vulnerability
• CVE-2018-15367, CVE-2018-18327, CVE-2018-18328, CVE-2018-18329: Untrusted Pointer Dereference Privilege Escalation Vulnerability

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 types 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 bly 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

The following advisories may be found by visiting the following sites:

• CVEs - https://cve.mitre.org/cve/cve.html
• ZDI Advisories - Trend Micro's Zero Day Initiative Published Advisories

CVE	ZDI Case
CVE-2018-15366	ZDI-18-1293
CVE-2018-15367	ZDI-18-1294
CVE-2018-18327	ZDI-18-1295
CVE-2018-18328	ZDI-18-1296
CVE-2018-18329	ZDI-18-1297