Buffer Overflow in IBM i PASE Process

Executive Summary

This is a denial of service vulnerability in IBM i operating systems (versions 7.6, 7.5, 7.4, and 7.3). It occurs due to a buffer overflow in a PASE process, which could allow an authenticated attacker to terminate their own process.

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Detection Guidance

This vulnerability is specific to IBM i systems and involves a buffer overflow in a PASE process. Detection would typically involve monitoring for unusual process terminations or crashes in PASE environments on IBM i systems. Check system logs for process termination events and review any PASE-related processes running on your IBM i system.

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Impact Analysis

An authenticated attacker could exploit this to disrupt their own processes, potentially causing service interruptions or system instability. The impact is limited to the attacker's own session and does not affect other users or systems directly.

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Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing an authenticated attacker to terminate their own process, which may disrupt system availability. Denial of service conditions can violate requirements for data availability and integrity in these regulations.

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Mitigation Strategies

Apply IBM i PTFs or updates as soon as they become available to address the buffer overflow issue in PASE processes.

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