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[R1] LCE 5.0.1 Fixes Two Third-party Library Vulnerabilities



Log Correlation Engine (LCE) 5.0.0 is impacted by multiple vulnerabilities reported in a third-party library and an encryption algorithm. LCE was errantly using 3DES on TCP port 1243.

The following vulnerabilities have been resolved with the updated libraries.

  • cURL / libcurl lib/url.c allocate_conn() Function OCSP Stapling Validation Failure MitM Certificate Revocation Bypass [VulnDB 152389 / CVE-2017-2629]
  • Triple Data Encryption Algorithm (3DES) 64-bit Block Size Birthday Attack HTTPS Cookie MitM Disclosure (SWEET32) [VulnDB 143387 / CVE-2016-2183]

Please note that Tenable strongly recommends that LCE be installed on a subnet that is not Internet addressable.


Log Correlation Engine (LCE) 5.0.1 has been released, which updates the linked cURL library and disabled 3DES. The new version can be obtained on the Tenable Support Portal.

This page contains information regarding security vulnerabilities that may impact Tenable's products. This may include issues specific to our software, or due to the use of third-party libraries within our software. Tenable strongly encourages users to ensure that they upgrade or apply relevant patches in a timely manner.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email [email protected]