Check Point Advisories

Flexera FlexNet Publisher License Server Buffer Overflow (CVE-2015-8277)

Vulnerability
Protection

Check Point Reference:	CPAI-2016-0395
Date Published:	29 May 2016
Severity:	Critical
Last Updated:	Thursday 01 September, 2016
Source:
Industry Reference:	CVE-2015-8277
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Flexera FlexNet Publisher prior to 11.13.1.2 Security Update 1
Vulnerability Description	Two buffer overflow vulnerabilities have been discovered in the FlexNet Publisher license server manager. These vulnerabilities are due to improper bounds checking in a custom strncpy() function when handling requests received over the network. An attacker could leverage these vulnerabilities by sending a specially crafted request to the vulnerable service. Successful exploitation would allow execution of arbitrary code in the security context of System.

Protection Overview

This protection will detect and block 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 Flexera FlexNet Publisher License Server Buffer Overflow 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: Application Servers Protection Violation.
Attack Information: Flexera FlexNet Publisher License Server Buffer Overflow