Check Point Advisories

Symantec Integer Overflow in TNEF decoder (CVE-2016-3645)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0558
Date Published:	4 Jul 2016
Severity:	Critical
Last Updated:	Monday 04 July, 2016
Source:
Industry Reference:	CVE-2016-3645
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	• Norton 360 prior to NGC 22.7 • Norton Bootable Removal Tool prior to 2016.1 • Norton Power Eraser prior to 5.1 • Norton Security prior to NGC 22.7 • Symantec Critical System Protection prior to 5.2.9 MP6 • Symantec CSAPI prior to 10.0.4 HF01 • Symantec Data Center Security: Server Advanced 6.5 MP1 • Symantec Data Center Security: Server Advanced 6.6 MP1 • Symantec Embedded Systems Critical System Protection 1.0 MP5 • Symantec Embedded Systems Critical System Protection 6.5.0 MP1 • Symantec Endpoint Protection prior to 12.1-RU6-MP5 • Symantec Mail Security for Domino 8.1.3 and prior • Symantec Mail Security for Microsoft Exchange 7.5.4 and prior • Symantec Mail Security for Microsoft Exchange 7.5.4 and prior • Symantec Message Gateway prior to 10.6.1-4 • Symantec Norton Antivirus prior to NGC 22.7 • Symantec Norton Internet Security prior to NGC 22.7 • Symantec Protection Engine 7.8.0 • Symantec Protection Engine prior to 7.5.4 • Symantec Protection for SharePoint Servers 6.0.6 and prior
Vulnerability Description	Multiple vulnerabilities exist in the Decomposer component of Symantec Antivirus Engine. These vulnerabilities are due to incorrect or missing bounds checks. A remote, unauthenticated attacker could exploit these vulnerabilities by sending a maliciously crafted file to a user running this engine.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

In the IPS tab, click Protections and find the Symantec Integer Overflow in TNEF decoder protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Security Products Enforcement Violation.
Attack Information: Symantec Integer Overflow in TNEF decoder