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Log Correlation Engine 5.0.6 Release Notes - 6/26/2018

Note: If your upgrade path skips versions of LCE®, Tenable recommends reviewing the release notes for all skipped versions. You may need to update your configurations because of features and functionality added in skipped versions.


  • The diagnostics tool diag now records firewall configuration information, as well as additional directory information useful in diagnosing directory permissions problems.
  • The admin utility, in /opt/lce/tools/es-helper-scripts/, now takes an additional option, --filter-tracelog--errors-exceptions. This filters the Elasticsearch tracelog and prints a succinct chronological listing of error messages and exceptions; in such a listing, redundant and non-actionable lines are excised.
  • The rectify-disk-utilization utility, in /opt/lce/tools/es-helper-scripts/, is new. Intended for recovery from a full-disk situation, this utility helps an operator to bring disk usage to below 90%, in two phases:
    • erases non-critical files
    • as needed, repeatedly prompts operator to clear the oldest silo.
  • The harmonize-datastore utility, in /opt/lce/tools/es-helper-scripts/, has been revised for greater robustness, as well as extended scope: it now corrects any errors in mapping of aliases to Elasticsearch indexes.

Resolved Items

  • Authorized clients may lose authorization once disconnected.
  • Authorization does not follow a client across an IP change.
  • Daemon lced may terminate abnormally if size of the current silo far exceeds 20GB.
  • Daemon lce_tasld becomes unstable and fails to produce TASL events, if a particular volume and pattern of input events are encountered.
  • Daemon lced may terminate abnormally if a version 5 client fails to complete its login sequence.
  • Excessive alerts generated when the lceddaemon detects that a client’s IP has changed.
  • Installer improperly rejects certain versions of the OpenJDK JVM.
  • Incorrect numbering of silos created by the `import_logs` utility.

File Names & MD5 Checksums

File MD5
lce-5.0.6-el5.x86_64.rpm 3928e3e6f41f2b1beb67a64f28912ca5
lce-5.0.6-el6.x86_64.rpm 128b99c052101b9f86bd0bd3626bf27a
lce-5.0.6-el7.x86_64.rpm 8f8bac072500675bd6db69dd0624074c

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