|Check Point Reference:||CPAI-2016-0970|
|Date Published:||1 Nov 2016|
|Last Updated:||22 Apr 2018|
|Protection Provided by:||
|Who is Vulnerable?||OpenSSL Project OpenSSL 1.1.0|
|Vulnerability Description||A denial-of-service vulnerability exists in OpenSSL. The vulnerability is due to an error in SSL_peek() API that causes an infinite loop to occur when processing empty records. A remote, unauthenticated attacker can exploit this vulnerability by supplying an empty record during an SSL connection. Successful exploitation will cause the server application to use up 100% of its CPU resources, resulting in a denial-of-service condition.|
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.
This protection's log will contain the following information:
Attack Name: OpenSSL Enforcement Violation.
Attack Information: OpenSSL SSL_peek Infinite Loop Denial of Service