J-Security Center

Title: Compaq TruCluster Port Scan Denial of Service Vulnerability

Severity: CRITICAL

Description:

TruCluster is a server high-availability software package distributed and maintained by Compaq.

A problem has been discovered that could allow a denial of service to users of the TruCluster package. The problem is in the handling of portscans by the software.

When a system is portscanned from a system without a DNS PTR record in DNS, the cluster develops split-brain. Split-brain is a condition that results from another server in the cluster being started to take over the operations of a failed server while there's still another system running.

This can result in corrupted or destroyed data, denial of service, and even hardware damage.

Affected Products:

  • Compaq TruCluster 1.5.0

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